This keycap set might just be an absolute must-have. Its thickened wall ensures maximum sturdiness and its 131 keys fit most standard mechanical keyboards (61/64/68/84/75/87/96/104). Plus, they're PBT(Polybutylene terephthalate) with an anti-grease coating, so you'll enjoy long-lasting durability and a smooth typing experience. Plus, the XDA profile looks awesome and increases comfort when typing. Still, just make sure your switches are MX-compatible. Yay!