Hole size: 10x2.5mm
Zinc plated with gold. Clear shiny coated.
Use 1 10mm FLAT leather or 2 Lengths of 5mm FLAT leather
Clasp adds about 1 inch
If you find that your new bracelet is opening too easily with this clasp, try bending and flexing the leather in to the curve of the bracelet shape. A freshly cut piece of leather will still be trying to straighten out and puts a lot of torque on the clasp, so bending it helps the clasp stay closed.