This is the mounting hardware that holds a Spex Adapta back support onto the wheelchair canes at two points. The second point of attachment gives you a wider range of back angle and a solid platform for taller supports, which is what you want when a client loads heavily through the backrest.
Depth and angle are both adjustable at fitting and again at review, and the hook and latch quick release lets a carer lift the back support off for transport or cleaning without tools. One thing to check before ordering: the hardware needs clear cane space, so it will not fit most chairs that have a horizontal cross brace across the back.
