For 100% 104 keys, the Redragon P037 Meteor L Keyboard Wrist Rest Pad is made of soft memory foam with an anti-slip rubber base. Small Size: The item Filler of Soft Foam High-density memory foam is used to guarantee that the shape won't be distorted by pressure from prolonged use and to provide a comfortable experience that lasts. Broad Compatibility Almost all keyboards on the market come with three different wrist support pad sizes, 60%