Hi, I just found this ergonomic vertical mouse. It's looking really good and it's way cheaper than Logitech's Mx Vertical. Basic version is currently 57% off (current price is $69), while Pro version is currently 56% off (current price is $79). In my opinion best thing is possibility to switch mouse to another device (Multiple Device Connection). You can find more information on this link: https://delux-seeker.kckb.st/27c16907