How about the genuine Kailh click switch "Kailh MUTE Button" for silent mice? I'm selling these at this price, almost at cost, because I bought them in bulk. How about using them for silent mouse modifications or repairs? CMI627301 https://m.kailhswitch.com/info/kailh-silent-micro-switch-mi627301d-35964852.html I was able to repair the left click on my Logitech M331, so I'm offering these for sale. You can easily find repair instructions by searching online. The following is a clear explanation for the M331: logicool 静音マウス M331の修理 (Repair of Logitech Silent Mouse M331) https://riku-zen.cocolog-nifty.com/blog001/2019/05/post-9d3d2b.html Other repair examples: Elecom EX-G, Logicool M510, M590, M570・M575, M650, M720, G700・G700S, MX Master Manufacturer: Kailh Mute Button Model Name: Silent Switch Wireless Mouse Button Micro Switch Size: 6*6*7.3mm Rated Current: 50mA (A) Quantity: 4 Please prepare your own solder wick if needed. If you need it, I can provide about 6cm of solder wick, reducing the number of switches by one. Please comment after winning the auction. By the way, it takes 2-3 weeks, or about a month, to arrive from Amazon...