PFOT Low Profile Slant Boards -->Ideal for classroom and home use. Low profile spring clip holds paper tight. Made from high quality, lightweight, easy to care for plastic, with smooth finished edges for safety. Will not shatter like plexi-glass if dropped. Features nonslip pads on the bottom and convenient "cut - out" carry handle. The 20 degree angle is ideal for writing and reading, offering positioning benefits for the eyes, neck, shoulders, trunk, arm and hand. Optional overlay provides a more pleasing, proprioceptive writing surface which can improve handwriting by diminishing pen/pencil slippage. Slantboards now available in black (without overlay); blue with overlay or mini size in black with overlay. Overlays are also available to add to your current slantboard.