Review on Perixx PERIPRO-303 X4A Trackball With 1.34-Inch Replacement Ball For Perimice And M570 - 4-In-1 Multi-Color Trackball In Red, Purple, Pink, And Lavender With Stylish Storage Box by Enoch Sahay

I've used Logitech "trackman" style trackballs forever, the most common current version is the M570. I keep one at work and one at home for when I work from home, which has been more often with covid.unfortunately I kept dropping mine and the doggo though it was one of her balls. needless to say it came back with a few teeth marks embedded in it, making it very "clicky" and "clonky" to use. Figure there might be replacement balls and figured I would give this a shot, especially since green is my favorite color.it not only fit in perfectly, but I think it's slightly "larger" - as it's much harder to remove to clean out.on the pro side, this also means less gunk gets in, so I clean it less! every bit as precise and functional as the original ball