Mabis DMI Wheelchair Tray DUR5000 Our Low Price:$44.89 In Basket: None Clear, acrylic tray provides a hard surface for eating, writing, reading or other activities. Universal size fits all standard 16" to 20"W wheelchairs with standard arms. Attaches easily with Velcro straps. 23"W x 19"D x 1/4" thick.