Really Useful Box (64l) - Ratchet Strap Corner

This is a corner attachment for the 64l really useful box (It will likely work on other sizes). I printed this to add onto the corners of the boxes to hold ratchet straps in place as when strapping the boxes down in the back of my pickup it can often be annoying to ensure the strap does not slip under the boxes. 

Ratchet strap slot is 25mm wide and 1mm deep for light duty ratchet straps. 

This was printed in TPU and needs to be printed in some kind of flexible filament to allow it to clip onto the box properly.