Kensington Adjustable Memory Foam Wrist Rest with SmartFit System (K62682US) Hypoallergenic memory foam wrist rest provides 2 built-in height options (1-1/8 Inches and 1-1/2 Inches) to ensure optimal typing angle. Lycra cloth cover wicks away moisture and dirt, keeping wrist support soft and comfortable Indicates the correct distance for your personal comfort color, according to SmartFit(TM) guidelines. Hypoallergenic comfort for sensistive skin.