This keycap is doubleshot molded (one of the highest quality mold possible) and is made of ABS plastic. This combination produces one of the highest quality keycaps, with its legends being resistant to scratching and even sandpapering. Compatible for Cherry MX / Gateron / Kailh / Razer / others MX clone mechanical switch, this set comes with 104 keys, all made in the standard OEM profile (check the keycap size chart). Designed for backlit mechanical keyboard especially, but you can put on non-backlit keyboard too.