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 is black. The stand body is fixed by inserting it into the dongle insertion slot and pushing it into the ball hole. The dongle and battery cover can be stored in the main body. The stand body and tilt parts slide and lock together. Non-slip rubber is attached to the back of the main body and each tilt part. The tilt is designed with the base of the little finger as the axis to prevent the wrist from floating as much as possible. Each part is priced as follows, and you can choose the angle and color according to your preference. 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 single items. 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 purchasing the correct item, as we also have stands for the M575. ＜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 item, there may be individual differences, and there may be traces of adjustment with sandpaper or a 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, so please understand.