I have a fair amount of thick heavy fixed blade knives I wanted a way to store them and thier matching sheaths for. I printed these both using a .4 and .6 mm nozzle and printed them with obnoxiously thick outer walls and 25% infill so they could be just screwed into a wall to be hung holding a fair amount of weight on them and to not be able to be easily crowbarred apart taking a knife out of the slot. I did the hooked for the fixed belt loop sheaths, and the smaller front slots for sheaths that have snap loop sheaths or metal clip type or molle style hangers on them.