Kailh micro switches "KAILH GM 8.0" for high-performance gaming mice + 6cm solder wick. Purchased in bulk for a lower price, so I'm offering them at this price. How about using them to repair mouse chattering issues? Shipping costs account for half of the listing price, so this is practically a loss-leader. Please refrain from price negotiations. Adding one more is +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 was able to repair the left click on my Logitech M280, so I'm introducing and offering these for sale. For repair methods, the following is easy to understand when searching the net for M280: Mouse micro switch replacement for chattering repair (Logicool M280 and M557) https://sophie-mercure.blog.jp/archives/25267017.html Other repair実績: Logicool M280, M557 Manufacturer: Kailh Model Name: KAILH GM 8.0 (80 million clicks guaranteed) Size: 12.8*5.8*6.5mm Allowable Current: 100mA (A) Quantity: 2 The original switches seem to be Kailh 5M. I purchased these for work and replaced them after about a year 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 your own solder wick if needed. If you need it, I can add approximately 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, or about a month. You could buy a new mouse in that time.