The solution, of course, is to open and lubricate. but because of the very frail attachment under the "RMB and LMB" buttons, this cannot be done often, so I think I'll have to switch to another model With its pros: An interesting design, the absence of a lack of ping when moving the mouse is smoothly played on it perfectly. Some cons: as well as everyone present, I encountered the problem of scrolling the wheel. The wheel twitches like a paralytic on the page and causes great discomfort.