Package Included 108 Normal ANSI Keycaps, no keyboard included.This keyset is Cherry profile. This keycaps are high quality PBT double shot shine through. Compatiability It can be used for most Cherry MX Gateron MX Kailh MX and all other MX switches keyboard. Incompatiability If the spacebar is 6u 6.5u 7u instead of 6.25u,it can't be compatible,This YMDK keycap is not compatible with Corsair Razer Keyboard. .You need to order additional keys to use on these keyboard. Some old Cherry keyboard whose Spacebar Capslock back hole is different is not compatible.Such as Cherry 3000 1800 Some Costar stabilizer keyboard whose big keys may be stuck for different amoulding.You can adjust the wire or replace the costar inserts in the common market whose amoulding is more popular.If you have met this problem,just leave us message.We will help you solve it. After Service If some keys missing or broken on the way,just leave us message,we will send you missing or broken ones soon.Don't worry about it and don't leave feedback immediately.