Bungee Carabiners
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Using your keys with a Bungee Carabiner keeps them secure on your belt loop, backpack, or other attachment point so they won't fall off and get lost. Once you've retrieved your keys, simply tug on the slotted part of the keychain to tighten up the bungee cord again. This handy device requires a 4-6mm bungee cord that can be any length you prefer. By reversing the direction of the bungee through the slot, you can also create an adjustable bracelet.
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With this file you will be able to print Bungee Carabiners with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Bungee Carabiners.