This product combines a dual-layered design of a transparent cover and keycaps, allowing you to insert your favorite symbols and illustrations into the keyboard. It is compatible with XYZA's TinyKeyboard series, CHERRY MX products, and compatible switches. It allows you to physically display icons, illustrations, and text on the keyboard keys. This product offers a free download service for printing templates to be displayed on the keycaps. The TinyKeyboard expansion tool is also provided free of charge, allowing you to upgrade XYZA's copy-paste keyboard to a programmable keyboard. It is compatible with CHERRY MX and CHERRY MX2A switches. Since the TinyKeyboard uses CHERRY MX-compatible switches, this product can also be used with keyboards that use CHERRY MX. *This product is just the keycaps; the keyboard itself is not included.