The see through Clear Wheelchair Work Tray is made of strong ? inch thick break-resistant polycarbonate. Clear plastic makes this tray more attractive and discreet than traditional lap trays. Attaches easily to all types of wheelchairs with hook and loop straps. The aluminum trim acts as a lip to keep items from falling off. This durable work tray measures 19 x 23-1/2 in. Abdominal cutout measures 15 in. wide. Clear Wheelchair Work Tray Features:Made of clear plastic polycarbonate.Economically priced general utility tray.Includes aluminum rim and hook-n-loop straps.Clear Wheelchair Work Tray Specifications:Tray measures: 19 x 23-1/2 in.Abdominal cutout measures: 15 in. wide.