The gray, pack of 10 XK-A-501-R Wide Keycaps from X-Keys instantly create a custom layout for your application. You can use these wide keycaps for frequently used triggers or modifiers. The wide keycaps replace two single keys on an X-keys. Each package contains ten key cap bases and ten clear cover lenses. These keycaps fit all X-Keys (except the Stick series XK-4, XK-8, or XK-16).