Features: Good handfeeling and 60million clicks long service life. As long as your original mouse is rectangular three-pin straight foot micro move, universal Crisp feeling, medium and short stroke, compact rebound.Less lag than similar products. The red dot button 60M, longer than the ordinary 50M life, and even, feel crisp, very comfortable! D2FC-F-K red dot microswitch is relatively more crisp , improve switch accuracy, smooth operation. Specifications: Model:D2FC-F-K Mouse Micro Switches Life: 60 Million Clicks Quantity:4PCS Material: Plastic Packing Size:As Pictures Force: 0.74N Dot: Red Dot Connector:3Pins Package Includes: 4Pcs Micro Switches (Without retail package) note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-2mm error due to manual measurment.