Details 1.This link is only Gateron Optical switches for optical switches keyboard. 2.It can support optical keyboard,such as SK61 /SK64 /X-bow Nature Knight. 3.This optical switches can't interchange for mechanical MX switches.The bottom is different structure. So,Check carefully before you buy ! Specifications: Item: Mechanical Keyboard Gateron Optical Switch Material: Plastic+Metal Color: Blue, Red, Brown, Black, Silver, Yellow Size: Standard size Quantity: 1 Set(10pcs/7pcs(MIX)) (other accessories demo in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: (10pcs/7pcs(MIX)) X Mechanical Keyboard Gateron Optical Switch (No retail package)