Eyelets and is copper with electroplating on surfaces, which has very good resistance and bright appearance,, not easy to rust Eyelets for tarpaulins includes 50 sets of brass eyelet, 1 storage box The holes have an inner diameter of 20mm and an outer diameter of 33mm All 20mm eyelet are included in a compartment storage box, which makes it easier to find the corresponding component The quantity of large eyelet enough for daily use Suitable for jeans buttons, tents, tarpaulins, awning, curtains, canvas bags, belts Cut a hole in the tarpaulin with the punching tool, then pick up the eyelet set, and finally fastens the eyelet set well with the attached tool