A belt clip designed to fit an Anker external battery pack. (specifically, Anker 2nd Gen. Astro3 12000mAh External Battery: http://www.ianker.com/product/79AN7904-BA) Designed in FreeCAD; should be modifiable using the sketch layers. However, I'm not terribly experienced with this software and may not have set up the file very well. Printed well in black ABS. Cupcake (Sailfish + acceleration) sliced with Kisslicer. Overall slicing settings used: Print with support for the bottom foot overhang if using the provided orientation (upside down).