Kailh micro switches "KAILH GM 8.0" for high-performance gaming mice. Purchased in bulk for a lower price, I'm offering them at this price. How about using them to repair your mouse's chattering problem? Shipping costs account for half of the listed price, so this is practically a loss for me. Please refrain from price negotiations. Adding one more switch is an additional 309 yen. KAILH GM 8.0 https://kailhswitch.net/products/kailh-gm-8-0-gaming-mouse-micro-switch-80m-life-for-computer-mice-left-right-button I personally repaired the left click of my Logitech M280 using these, so I'm introducing and offering them for sale. For repair instructions, the following is easy to understand for the M280 if you search online: Mouse micro switch replacement for chattering repair (Logicool M280 and M557) https://sophie-mercure.blog.jp/archives/25267017.html Other repair実績 (results): Logicool M280, M557 Manufacturer: Kailh Model Name: KAILH GM 8.0 (Guaranteed for 80 million clicks) Size: 12.8*5.8*6.5mm Rated Current: 100mA (A) Quantity: 2 The original switches seem to be Kailh 5M. I replaced them after about a year of use in my work mouse when I occasionally felt something was off. With this product, it's simply 16 times longer, or 9 years, so you can use it for the life of your mouse. Replacement Timing Kailh Black 5M (GM 0.5) 225 days Kailh Black 60M (GM 4.0) 7.4 years (estimated) Kailh Black 80M (GM 8.0) 9.9 years (estimated) ★ Please prepare solder wick if you need it. If you need it, I can add about 6cm of solder wick as an option for an additional 40 yen. Please comment before purchasing. By the way, it takes 2-3 weeks to arrive from Amazon, which is about a month. You could buy a new mouse in that time.