This is a tilt stand for the Logitech Trackball Mouse M570. This listing is for a set consisting of the stand body (15 degrees) and a 10-degree tilt part, in black. The stand body is fixed by inserting it into the dongle slot and pressing it into the ball hole. The dongle and battery cover can be stored in the stand body. The stand body and tilt part slide and lock together. Non-slip rubber is attached to the back of both the stand body and the tilt part. 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 can be discussed. Combinations not currently listed are also possible. If you wish to purchase additional tilt parts separately, we can accommodate you, but in that case, we will add a shipping fee (200 yen). 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 will be characteristic 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, 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 itself. Please understand. We cannot provide support for malfunctions caused by your own modifications, so please contact us in advance. The bottom surface (the 3D printer output surface) may appear smooth, rough, or scratched due to the 3D printer's output process. Please understand.