Kensington Adjustable Memory Foam Platform Wrist Rest with SmartFit System (K62683US) Hypoallergenic memory foam rest provides 2 built-in height options (1-1/8" and 1-1/2") to ensure optimal typing angle. Ideal for tight workspaces -- extends desktop to make room for wrist support. Built-in copyholder positions documents in line with the keyboard and monitor for faster and more comfortable data entry. Non-skid base wont wander during use. Lycra cloth cover wicks away moisture and dirt, keeping wrist support soft and comfortable. All-in-one wrist rest and keyboard platform provides stability and comfort. Indicates the correct distance for your personal comfort color, according to SmartFit(TM) guidelines.