How about the genuine Kailh click switch "KAILH MUTE Button" for silent mice? I'm selling them for about 68 cents (around 90 yen) each in bulk, even though it's below cost until the competition disappears. How about it for silent mouse modifications or repairs? It comes as a set with 6cm of solder wick. CMI627301 https://m.kailhswitch.com/info/kailh-silent-micro-switch-mi627301d-35964852.html I was able to repair the left click on my own 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 silent mouse M331 repair 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: 3 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.