How about the genuine Kailh click switch "Kailh MUTE Button" for silent mice? I'm selling these at this price, practically 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 article explains it clearly 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: 50 pieces Please prepare your own solder wick if you need it. If you need it, I will include approximately 6cm of solder wick, reducing the switch count by one. Please comment after winning the auction. By the way, it takes 2-3 weeks, or about a month, to arrive from Amazon...