The Angle Adjustable Upper Extremity Support is available in 5 sizes, corresponding with Corpus backrest widths: 14”, 16”, 18”, 20”, and 22” wide. This tray is ideal for supporting a laptop, phone, tablet, communication device or ECU, and can be used to support writing, reading or eating/feeding. Special considerations include requiring alternative or extended hardware for arm troughs or large abdominal girth.