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Hercules Small US

Hitting the roads today with tomorrow's safety in mind!

Hercules Small US

Hitting the roads today with tomorrow's safety in mind!

We're excited to unveil the new Hercules Small rehabilitation booster seat – a leader in child safety for car travel! This specially engineered special needs booster seat not only adheres to the current safety standards but is also designed to meet future requirements. The Hercules Small, offers a high level of safety and effective protection for your child.

But the Hercules Small is more than just a basic booster seat – we've outfitted it with crucial additional features like side impact protection, adjustable pelvic and leg guides, and a headrest. Each of these elements plays a key role in meeting the therapeutical positioning recommandations while ensuring your child's safety and comfort.

Hercules Small - see the new features!
Order form
Product Registration
Downloads

Side impact protectors

absorb the forces in the best possible way, especially in the head and shoulder area.

Chest Clip

prevents twisting of the straps and ensures that the straps stay in place

Leg guides

are used for support and positioning in the thigh area. They can be adjusted individually.

5-Point-positioning-belt

provided with soft shoulder pads for positioning support and correct safe seating position during the ride. The belt length is easily adjustable at the two buckles.

Pioneer for rehab car seats - since 1988

For over 30 years, Thomashilfen has been providing children with rehab car seats. Today, we also use our knowledge to develop our own rehab car seats for children and adults. With our many years of experience, each seat is centered around the needs of user and their relatives.

First-Class functionalities

Back height

The backrest can be continuously adjusted in height by 24 cm / 9.45" allowing it to be adapted to the child's growth at any time. The head is held in an optimal position by the continuously and individually adjustable headrest.

The large selection of accessories that grow with the product allows for a long service life.

Leg guide

Narrow and wide users with seat width from 29 to 38 cm / 11.42 to 14.96" sit well supported at all times. The pelvic and leg guides that grow with the child – individually adjustable for each side.

Side impact protectors

The Side impact protectors offer particularly good side impact protection – they absorb the forces in the best possible way, especially in the head and shoulder area. Tested in accordance with the safety standard FMVSS 213.

Always one step ahead in terms of safety

Hercules Small offers top-tier safety

The Hercules Small offers top-tier safety, having been thoroughly tested to comply with the Federal Motor Vehicle Safety Standard (FMVSS) 213, including the side impact protectors. By meeting these standards, the Hercules Small ensures that it provides robust defense against the forces encountered in side-impact collisions. This commitment to safety means that the car seat not only meets but often exceeds the necessary criteria to protect your child during travel, offering reassurance to parents about their child’s safety in the vehicle.

Large becomes handy
ONLY 21.7 x 9.1 x 23.6" / 55 x 23 x 60 cm

With just a few movements of the wrist, the new Hercules Small special needs booster folds into a slim, easy-to-handle format. This not only simplifies assembly in the car, but also ensures that the seat can be easily transported and stored in a space-saving manner even in limited trunk capacity.

Hercules Small: swivel and tilt function

With the swivel function, the Hercules Small can be turned towards the passenger side vehicle door. This makes it easier to get in and out of the Hercules Small booster seat. To turn the Hercules Small, press the red trigger and turn the seat towards the open vehicle door.

The tilt function makes it easier to position the child optimally if control of the upper body or head is restricted. The tilt function makes it possible to tilt Hercules Small backwards in 2.5° increments up to 10°.

Product registration

FOR YOUR CHILD‘S CONTINUED SAFETY

Although child restraint systems undergo testing and evaluation, it is possible that a child restraint could be recalled. In case of a recall, we can reach you only if we have your name and address, so please fill in the registration form to be on our recall list. In order to properly register your child restraint system, you will need to provide the model number, serial number and date of manufacture. This information can also be found on a white label located on the back of the child restraint system.

This registration is only applicable to child restraint systems purchased in the United States.

Register your Product now
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More Highlights & Functions

Headrest - Hercules Small

Headrest

The headrest of Hercules Small US is individually adjustable in width (3.35") and height (1.18"), to be as individual as the person in the seat.

Adjustable back angle

Back angle

Can be continuously adjusted with two quick handles – without any tools at all: simply use the red quickrelease clamps.

Belt Buckle & Shield Pad

Crotch Pad

Reduces the pressure of the belt buckle on the sensitive abdominal area and conceals the belt buckle.

Adjustable seat depth

Adjustable seat depth

infinitely adjustable by 8cm / 3.15" for individual adaptation to the growth of the child.

Videos

Hercules Small installation with latch connectors & securing a child
Hercules Small US – Preview
Hercule Small - Seat depth adjustment

Installation - accessories

Installation – Latch connector
Installation – lateral trunk supports
Installation – magnetic Crotch Pad
Installation – crotch strap
Installation – chest clip
Installation – shoulder pads
Installation – stabilizing bow
Installation – swing away trunk supports
Installation – armrests
Installation – armrests and table
Installation – abduction block
Installation – additional head pad
Installation – upper belt guide
Installation – footrest
Installation – front cover
Installation – front stand
Installation – incontinence seat pad

Technical data

Dimensions & Weights Hercules Small US
Seat depth 31 – 39 cm / 12.2 – 15.4"
Depth behind crotch strap 20 - 33 cm / 7.9 - 13"
Seat width 21 - 33 cm / 8.7 - 13"
Seat to head 57 - 80 cm / 22.4 - 31.5"
Back width (seat) 45 cm / 17.7"
Shoulder height 36 - 60 cm / 14.2 - 23.6"
Shoulder width 45 cm / 17.7"
Shoulder width with shoulder pad 37 cm / 14.6"
Back angle (max.) 90° - 145°
Seat tilt-in-space (with tilting base 10°) 0° / 2.5° / 5° / 7.5° / 10°
Lower leg length (with foot rest)* 16 - 42 cm / 6.3 - 16.5"
Height lateral trunk supports (upper edge) 28 - 34 cm / 11 - 13.4"
Distance lateral trunk supports 20 - 33 cm / 7.9 - 13"
Max. overall dimensions (w x h x d) 55 x 85 x 34 cm / 21.7 x 33.5 x 13.4"
Min. folded dimensions (w x h x d) 55 x 23 x 60 cm / 21.7 x 9.1 x 23.6"
Weight of seat 11.6 kg / 25.6 lbs
Body size user 110.1 - 150 cm / 43.4 - 59"
User weight 18.2 - 50 kg / 40 - 110.2 lbs

*min. height seat to footwell 15 ¾" to install footrest / front stand

Accessories

Standard features:

Hercules Small US

Back with integrated height adjustment; seat with integrated seat depth adjustment and seat width and swivel adjustment; continuous back angle adjustment with quick release lever; tilt 10°; breathable pholstery with flame-retardant cover fabric: head rest cushion, back cushion, pelvic cushion, leg guide, seat cushion, chest clip; crotch pad; 5-point belt (non-load-bearing) including strap soft pads; belt guide for 3-point vehicle belt; side impact protectors; prepared mounting options for all accessories; removable covers, machine washable up to 105° F; tested according FMVSS 213

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    Car seat Installation Help / Get your car seat inspected

    Whether you’ve just installed a car seat or need help installing or using one, get help at a car seat inspection station near you. Certified technicians will inspect your car seat free of charge, in most cases, and show you how to correctly install and use it:
    https://www.nhtsa.gov/vehicle-safety/car-seats-and-booster-seats#installation-help-inspection

    Find CPS Resources

    Find child occupant protection laws, learn how to get your car seat checked and find answers to your car seat questions in your state or territory:
    https://www.cpsboard.org/car-seat-safety/find-cps-resources-in-your-state

    Looking for educational materials for the Child Passenger Safety Field:

    Hercules Small US:
    https://www.saferidenews.com/resources/adaptivecrs/hercules-small

    Manufacturers Alliance for Child Passenger Safety

    In 2007, through the efforts of Safe Kids Worldwide, the Manufacturers Alliance for Child Passenger Safety (MACPS) was formed. Over successive years, this organization has grown, not only in membership size but also activities, and has developed a leadership structure of its own in order to promote child passenger safety.
    More about MACPS

    Downloads – Hercules Small US

    Assembly instructions
    Title Version Size Download
    Brochure - Hercules Small US     		2025-12 1.37 MB Download
    Instruction Manual - Hercules Small US Version EN, left turning     		2025-12 2.65 MB Download
    Instruction Manual - Hercules Small US Version EN, right turning     		2025-12 2.62 MB Download
    Order form - Hercules Small US     		2026-01 997.67 KB Download