The Allsop Memory Foam Wrist Rest Small (Blue) is designed with a raised wrist rest and a large round mousing area. Multiple layers of memory form were combined to ensure maximum air circulation, conformity and wrist support. This ensures your hand and wrist in a more natural position while using your mouse. The memory foam conforms and adjusts to the contours of your wrist to relieve stress on pressure points. And it retains body heat to improve blood circulation. If you've heard anything about ergonomics, these features mean a lot to you. If you've never heard of ergonomics, these features will mean a lot when you do.