The Inland Spanish French German PBT Keycaps are designed for mechanical and optical keyboards, featuring a polybutylene terephthalate (PBT) material construction. These keycaps come in a set of 104 keys, with options for Spanish, French, and German language labels. The keycaps are suitable for both wireless and wired connectivity, and offer a projection keyboard style with plug & play features and water resistance capabilities. Ideal for use on desktops, these keycaps provide a high-quality and stylish replacement for your keyboard.