This is a tilt stand for the Logitech trackball mouse M570. This listing includes the stand body (15 degrees) and tilt parts (10 and 15 degrees), color: black. The stand body is fixed by inserting the dongle and pushing it into the ball hole. The dongle and battery cover can be stored in the body. The stand body and tilt parts slide and lock together. Non-slip rubber is attached to the back of the body and tilt parts. The tilt is designed with the base of the little finger as the axis to prevent the wrist from lifting as much as possible. Each part is priced as follows, and you can choose the angle and color to your liking. Colors available are black, white, and silver, but other colors are also available upon request. Combinations not currently listed are also possible. If you wish to purchase additional tilt parts individually, we can accommodate you, but we will add a shipping fee (200 yen) for individual parts. M570 Stand Body (15 degrees) 2200 yen Tilt Part (10 degrees) 500 yen Tilt Part (15 degrees) 600 yen Tilt Part (20 degrees) 700 yen Please make sure you are ordering for the M570 and not the M575, as we have listings for both. ＜Reference: M575 Stand Ver2 Introduction Video＞ https://youtu.be/ZXixy01VsZs ＜Supplementary Information＞ Due to being manufactured with a layered 3D printer, there may be unique layer lines. If the item is out of stock, it may take some time to ship. As this is a handmade product, there may be individual differences, and there may be traces of adjustment with a file or knife. The mouse shown in the photos is not included in the product. The detailed specifications may differ from the photos. The color of the materials used may vary depending on the time of year, so the color may differ from the photos. I will check and adjust the product with my own mouse, but the feel may vary depending on the individual differences of the mouse body. Please understand. We cannot provide support for malfunctions caused by your own modifications, so please contact us in advance. The bottom surface (the bottom of the 3D printed output) may appear smooth, rough, or scratched due to the 3D printer's output surface. Please understand.