3-in-1 Design This product has many functions, not only can be used as a laptop/ipad/keyboard riser for desk, but also can be used as a pen protective case for an iPad pencil or a straight-edge ruler as school supplies. ( ) Three Ergonomic Angles Available in incline levels 6°, 8°, and 10°, which are rational heights for reading and typing, this laptop cooling stand can alleviate posture-related problems such as muscle, wrist, and repetitive strain injury.