Specifications:    Size: 14.5cm x 8.5cm \/ 5.7!#!amp!*!quot; x 3.3!#!amp!*!quot;    Features:    Not only switch tester、but also has switchs and keycaps    Switches Contains :    1. Cherry MX switch Black、 Red、 Brown、 Blue  2. Kailh Switch Black、 Red、 Bro