A mechanical-style keychain with moving gears. It features a small circular keychain containing interlocking gears that move smoothly together. Each gear can rotate freely, creating a dynamic and interesting visual effect when the keychain is in use. The gears are compact enough to ensure its functionality as a keychain, yet detailed enough to show how they operate. The keychain itself is sturdy and lightweight, with a hook hole and smooth surface for easy attachment to keys. This keychain is perfect for enthusiasts of engineering or mechanical design, offering both practicality and aesthetic appeal.

• Thanks to UMake - thingiverse.com/thing:525981