Wheelchairs, Mobility Scooters and Accessories Invacare Upholstery Kit – Desk-Length Armrests 16″ X 16″ – EMBOSSED BLACK Review by RoomPony July 24, 2018 No Comments Fits most Invacare (1000 & Tracers w/ Flared Backs) and Theradyne A wheelchairs. Latex free. Screws provided. More Replacement wheelchair upholstery. Kit includes one upholstered seat, one upholstered back, and 2 padded armrests.