Optional Model---For different sizes of buttons and eyelet, the size of the selected mold is also different. Our molds are available in sizes from 3mm to 20mm. You can choose the size of the mold according to the size of your button. Simple Use---Grommet die mold can be used with eyelet grommet machine. Applicable to the snap fastener, rivet, eyelet, etc. Easily make metal eyelets in waist belt, shoes etc. Strong and Durable---Made of high quality steel, high hardness. In order to make the surface tougher, the tool is heat-treated, the service life is longer. Wide Application---Widely used in luggage, belts, slings, printing cloth, shoes, hats, clothing, electronics, advertising and other products. Wide Application---Widely used in luggage, belts, slings, printing cloth, shoes, hats, clothing, electronics, advertising and other products.