Enjoy the simple fun of spinning your keychain or take your spinning skills to the next level with this keychain spinner. Simply connect this spinner to your keyring and enjoy. This is 3D printed using PLA plant based plastic assembled to a sealed ball bearing. The opening for your finger is 17mm which is just over a ring size of 6.5. Dr SpinZ stands behind these spinners and is constantly looking to improve. Please contact if you are not fully satisfied or if you have recommendations for future designs. Only the spinner is included. No keys or keyring will be included since most people already have these and we strive to conserve resources.