Kinematics is a system for 3D printing that creates complex, foldable forms composed of articulated modules. Use our free app to design your own flexible bracelets make your own at http://n-e-r-v-o-u-s.com/kinematicsHome/ I've uploaded a selection of different bracelets in a few different sizes. The sizes indicated on the file are the size of your wrist for a proper fit. If you need a different size or different style, just go to the app and design one to your liking.3D print it We suggest a layer height of .2mm