Package included 1x DSA or XDA profile Keyset (104 keys in total) No Mechanical Keyboard Included Details This keycap is XDA or DSA profile,DSA thickness is around 1.4mm,XDA is around 1.1mm thickness There is no legend on the caps. Compatibility Suitable for ortholinear layout MX mechanical keyboard ID75 XD75 Planck Preonic Niu40. If you want to use on other keyboard,can contact us to add additional big keys