Color options have been added. *Please specify your desired color in the message after purchase. ⬜︎ Features A 25mm (not compatible with 25.4mm) trackball case designed for Keyball using a 3D printer. It won't fall out even if turned upside down, and can be removed with a little force. Usable both flat and tented. Designed for right-handed trackballs, but can also be used for left-handed. *For left-handed use, please understand that the bearing mounting holes and the print seam will be on the front side. Prioritizing smoothness (rotation) makes fine work unstable... Prioritizing fineness (stability) causes stress during large movements... The EN・KAKU created this time is a balanced type that takes the middle ground. The body is designed to be minimal. Because the spacing and angle of the bearings are somewhat fixed, It resembles the designs of those who came before, but I believe you will be satisfied. ⬜︎ About Bearings Compared to standard ceramic balls, the movement is smoother, but there is a slight rubbing feel, but improved operability is expected. *After dozens of prototypes (last photo), the design minimizes the rubbing as much as possible. Three high-precision NMB MinebeaMitsumi bearings (DDL-415X5ZZ), which sell for around 250-370 yen each (excluding shipping), are used. It may feel a bit expensive, but it includes the cost of 3 bearings and 3 screws. Users only need to prepare a 25mm trackball to use it. ⬜︎ Two Designs EN, which has a rounded shape and gives a soft and slightly cute impression. KAKU, which is solid and has a cool, angular impression. Choose your favorite... ⬜︎ Colors (Filament Used) Bambu Lab PLA Matte ・Black...Matte Charcoal (product name) *Almost black ・White...Matte Ivory White (product name) ・Gray...Matte Ash Gray (product name) ⬜︎ Notes Before Purchase *We try to print as cleanly as possible, but please consider purchasing only if you understand that layer lines unique to 3D printing may occur. *Support material marks may be noticeable on the back to prevent the print from collapsing (not visible on the bottom). *Bearings are already installed, and inspected items will be shipped. *Body and trackball are not included. *Shipping via Yu-Packet Post. *Please refrain from price negotiations.