There would need to be a horizontal bar between the handles for the velcro flap to attach to and the straps tie on either side. There is the Standard Wheelchair Seatback Bag (Product # CDCB1111) that is designed for the back of a wheelchair. We also have other options for just wheelchair backs if you want to browse the: Home > Wheelchairs & Accessories > Wheelchair Packs, Bags & Totes