Tidi® Everyday Blue Flat Stretcher Sheet, 40 x 60 Inch, 1 Case of 100 Teaching Aids * Measurement storage frees user Cups are 7 * Measurement storage frees user from having to record measurements between readings 18 L x 16 L * Provides flat sitting surface and eliminates the hammock effect associated with traditional wheelchair seats * Made of lacquered finished plywood * Corners and sides are rounded to prevent chipping * Makes an excellent sitting surface when combined with a pressure relief cushion * Splinter free plywood * Weight capcity : 300 lbs * Embossed for softness Tidi's stretcher sheet is a barrier option that offers fluid holdout to help protect against contamination and help reduce clean up time