About this 3D model
This is a spool that fits in a carabiner. It's used for securing paracords or other cords. 03 Sept 2013 update: Added a V2 version. Allows the use of either M3 screw/nut or cableties to secure the 2 halves together. Also tweaked the design so that the spooling of the cords will be more even near the ends. Cheers!