Heavy duty corner handle in cool angular design. Made for screwing into wooden boxes, but can be adapted for machine screws, if you have a threaded holes on the receiving corner. 2 screws go horizontally, 2 go vertically, and are offset from each other.Harder materials work better (PLA) If you want it strong, print with 4mm+ perimeter, 50% infill - this is about 300g of filament.