M575 M575SP Angle Adjustment Stand for Trackball - White - 30° Purchased on Amazon in September 2025 along with other angle options. I've decided to use the 40° one, so I'm selling this one as it's no longer needed. ■ Product Description Angle adjustment stand specifically for the Logicool ERGO M575 and M575SP. Secures in two places: the battery cover and the ball's recessed area. By tilting it more than the standard angle, it allows for work at a natural hand angle. The receiver can be stored inside or on the back, depending on how you use it. You can turn the power on and off without removing the stand.