The Flip Away Wheelchair Armrest Tray by Therafin is a premium, padded trimline half tray with cup holder a pre-installed bracket that flips the tray up and out of the way. Wheelchair users will find this comfortable padded half tray provides a convenient surface for a variety of tasks. The Flip Away Wheelchair Armrest Tray has the Adjustable Height Channel Bracket attached. The bracket allows the tray to slide on the wheelchair armrest from the front, and flips the tray up to allow wheelchair users to easily enter and exit the chair without removing the armrest. A convenient beverage holder is built into the armrest. The tray is made of durable 1/2 inch thick wood covered in 1 inch thick foam with black molded satin vinyl. The trimline shape measures 6 inches wide at elbow, 10.5 inches wide at front edge, and 22 inches long. The tray is designed with a straight outer edge, and is slightly narrower, for support for people with a weakness on one side. The Adjustable Height Channel Bracket accommodates most any wheelchair with a 2-1/2 inch wide, 1-1/2 inch high armrest. The bracket is adjustable in height and measures 9 inches long. Two strong fiberglass-reinforced sliders included, use together for maximum support of extra weight or extreme pressure. The Flip Away Wheelchair Armrest Half Tray is available for either the right or left side. Therafin Adjustable Height Channel Bracket Instructions Flip Away Wheelchair Padded Armrest Tray Specifications: Tray measures: 6 inch wide at elbow, 10.5 inch wide at front edge, and 22 inches long. Materials: 1/2 inch thick wood covered in 1 inch thick foam with black molded satin vinyl. Care: Easy to wipe clean, and all materials are latex free. Fits: Wheelchairs with a 2-1/2 inch wide, 1-1/2 inch high armrest.