Houdini 13

Unique rear fastening with all the buckles being behind the seat backrest

This is a vehicle positioning harness for children and adults with special needs such as Autism Spectrum Disorder (ASD), Attention Deficit Hyperactivity Disorder (ADHD), Down Syndrome, Asperger’s disorder, developmental delay or other challenging behavioural needs where the person has problems with attention and safety. Providing safer travel and management of these loved ones when travelling in the car or other means of transport.


In vehicles, this harness is suitable for use on a single seat only, and can be fitted on wheelchairs and some easy chairs. Specially designed to restrain the child or adult during transport when seated in a single seat or high backed double seats where the back rest is split to the seat level.

To fit the harness easy access is required all the way round the seat back and underneath the base of the seat cushion.

Alternatively, this harness can also be used to offer postural support and assist in seating the occupant in an upright sitting position for persons with physical disabilities such as Cerebral Palsy (CP) and other significant physical disabilities or complex needs where extra support and positioning is required during travel.

It is advisable to carry out a safety and risk assessment to first consider the problems involved and what the situation would be if the passenger is not wearing a special needs harness. Could they be in danger to themselves and to other passengers in the vehicle or even other drivers on the road if they are not safely seated during travel?

Please note, to comply with safety regulations, the vehicle safety belt must always be worn over the top of the harness. The combination of the existing vehicle safety belt and the secondary harness offers added security for the passenger.

safety webbing slicer is included with every vehicle harness and must be kept in the vehicle as a safety precaution.
  • Only suitable for single backrest seats eg: front seat or rear ‘split-backrest’ seat styles
  • All 3 buckles are behind the individual where they cannot reach them
  • When putting the harness on, the carer is behind the individual
  • Good access must be available for carer to sit behind seat whilst putting the harness on
  • Can be used on wheelchairs and other seating systems
  • Gap is required between seat and backrest for strap to be passed through


Introduction to Houdini Vehicle Harnesses
How to install Houdini 13 Harness
Washing Instructions
Code Size Age Group Buckle Option
4604-1302-017 13J Paediatric Anti-Escape
4604-1302-031 13J Paediatric Pen-Key Release
4604-1303-017 13H 7 years to Adult Anti-Escape
4604-1303-031 13H 7 years to Adult Pen-Key Release
  • Hand wash only – in warm water up to 70/80 degrees.
  • Use mild detergent/anti-bacterial liquid wash.
  • Mild disinfectant can be used.
  • Do not use bleach
  • Do not tumble dry

12 months


Does this harness require a vehicle tether point?



No. This harness does not require any tethering; it is not a safety harness. It is simply attached to the vehicle seat with the securing straps.



If I can’t pass the strap between the seat and the backrest, what can I do?



This can be common. Most vehicles have a carpet flap at the rear which prevents the straps coming vertically around the seat. In virtually all cases the carpet can be cut with a pair of scissors or a knife to provide access through.



How do I Care for my Harness when it needs washing?


  • Harnesses must be cleaned by Hand washing only, in warm water up to 70 or 80 degrees.
  • Use a mild detergent/anti-bacterial liquid wash.
  • Mild disinfectant can be used.
  • Do not use Bleach or Tumble Dry your harness.