Features: brand new and high quality 1PC Key Board Button PCB For Logitech GPX Welding Free Assembly Micro Switch. TTC yellow core encoder (commonly known as Golden Wheel): the scale is very clear, slightly hard, high rolling accuracy, crisp when rotating (slightly loud), more suitable for game cutting gun, with a service life of 48 million grids. D2FC-F-K 50m blue dot: the original model before GPW generation 1 is also close to the original 7n G1 white dot of GPX generation 2. It has moderate strength, slightly crisp, high cost performance, uniform strength, slightly rapid rebound and a service life of 50 million. The new kailh GM 8.0 Black Mamba has a service life of 80 million times (current service life), moderate strength, crisp feeling, short stroke and millimeter trigger. The rebound is very compact and rapid, with less lag. New TTC dustproof gold 80 million times: it can be suitable for dusty environment. It has a full sense of brittleness, short stroke, very compact and rapid rebound, and a conservative service life of 80 million times. It defaults to sending a slightly hard and very brittle batch. Specifications: Type: Mouse Micro Switch Button Key Board Material: Plastic Quantity: 1PC Color: 1, 2, 3, 4, 5, 6(optional) Compatible models: for Logitech G Pro X Superligt Gaming Mouse Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1PC x Micro Switch Button Board