Review on Perixx PERIPRO-303 1.34 Inches Trackball - Pink Replacement Ball for M570, PERIMICE-517/520/717/720, and Other Compatible Trackball Mouse by Paula Brown

Oooooh, how nice! Green is my color so naturally I wanted a green mouse ball if I could get one. This is a 34mm mouse ball, which means it will fit both Logitech Ergo MX/Plus and Logitech M570. I would say the ball accelerates a bit faster than the stock gray Ergo MX/Plus mouse ball. I can see the entire HD monitor without lifting my thumb; The standard ball seems to be able to get me 90% across the screen, but not quite. I'm using this mouse on a Linux Mint system and the acceleration settings from the Cinnamon mouse/tablet settings panel work well, as does the precise thumb button without messing around with configurations. Other keys are also programmable in Linux. In bright light, this mouse ball looks like a very rich, slightly shiny green. It appears green in low light, but it doesn't scream "I'M GREEN" like the photo. There was a tiny smudge on the ball which I wiped off with a cloth in about 15 seconds. So if your ball is a little sticky, just know it's normal and easy to remove. The ball arrived without a scratch.