Place the piece along a ruled surface to give you an idea of the lengths of material you’ll need. If you used medical tape, you can just press it to the surface and leave it as a reference.
I’ll then take a length of tape that’s been folded over itself all but 1/4″. Cut two length’s that’s just a little less than an 1/8″ in width. It really should be around 3/32″ for accuracy purposes, but an 1/8″ will suffice. The buckles are designed for 1/8″ on the dot, so if it’s on the strong side, it’s going to create problems down the road.
If you’re using a material that has no adhesive, just simply cut the pieces.
The end that is only one sided, cut a middle out of it. The bottom of the printed piece is fused in the middle of the loop to help add a little support, so a notch has to be taken out for it to fit.
Go ahead and slide them through, fold over, and glue.