It's a clip that holds your filament, Simplz - Filament Clip This great little clip was printed as part of the November Printing event https://www.crealitycloud.com/contest/november-3d-printing-event Really nice fast print and it works. Printed on a K1 Max using Hyper Series Blue PLA Filament and sliced via Creality Print, 100% infill and no supports or brims needed. I do like a filament clip and have designed a few myself. This one is fast to print, especially on a K1 and works as intended. [%9631304319][%2443000667][%6839402488]