This compact USB keyboard (11" by 5 1/8" by 0.5" tall) can be positioned in tighter spaces like a half lap tray or on the end of a Universal Mount Arm. The color scheme is white on a black background. Users with reduced range of motion or use of only one hand may find this tool helpful to them. However, users with impaired fine motor control may find the tighter keyboard layout more challenging. **$25.00 replacement cost