Set of metal eyelets --- There are 100 sets of eyelets in the package. The inside diameter is approximately 6 mm (0.23 inches) and the outside diameter is approximately 10 mm (0.39 inches). It also comes with an installation tool kit and a transparent storage box, which is convenient for storage and not easy to lose. High quality --- Copper eyelet kit High quality, durable, corrosion resistant, shiny and not easy to rust. Easy to install --- a complete eyelet tool will make installation easier. First use a hole punch tool to punch holes in the fabric or paper shell, then remove the eyelet kit, then use the 3 supplied installation tools to mend the holes. DIY --- The high quality sewing eyelet kit is very suitable for DIY. Use old fabrics and metal eyelets to make exquisite craftsmanship, which will beautify your home and save you expense. Wide range of uses --- Our eyelet set can be Used to repair canvases, tarps, tents and other items it is also suitable for shoes, clothing, DIY drawstring backpacks, curtains and other items. It is a good accessory for household repairs and aftermarket clothing stores.