This is a tilt stand Ver2 for the Logitech trackball mouse ERGO M575. You can adjust the angle by combining the 15-degree main body with 10, 15, and 20-degree parts. This listing is for the stand body (15 degrees) and tilt parts (10 and 20 degrees), color is white. Ver2 adds a lever so you can switch between Bluetooth/USB on the back of the M575 while still holding the mouse. Two levers, large and small, are included, so please attach the one that is easier for you to use. The M575SP, which was released in September 2024 and supports silent operation and BOLT, has not changed its shape, so the stand can be attached. The stand body is fixed by hooking the claws behind the battery cover and pushing it into the ball hole. The dongle and battery cover can be stored in the main body. The main body and tilt parts slide and lock together. Rubber non-slip pads are attached to the back of the main body and tilt parts for non-slip purposes. The tilt is designed with the base of the little finger as the axis to prevent the wrist from lifting as much as possible. The tilt parts for M575 and M570, which are sold separately, have a common joint and can be used together, but the position of the holes on the back is different, so the switch cannot be operated. ＜Reference: M575 Stand Ver2 Introduction Video＞ https://youtu.be/ZXixy01VsZs ＜Reference: M575SP Back Button Specification Change Verification Video＞ https://youtu.be/XxajyN7fQqA ＜Supplement＞ Due to being manufactured with a layered 3D printer, there are unique layer marks. If the item is out of stock, it may take some time to ship. Because it is a handmade product, there may be individual differences, and there may be traces of adjustment with sandpaper, knives, and lighters. The mouse shown in the photo is not included in the product. The detailed specifications may differ from the photos. The color of the materials (filament) used may vary depending on the time, so the color may differ from the photos. I will check and adjust with my own mouse, but the feel may vary depending on the individual differences of the mouse body. Please understand.