Warm prompt - You need to punch holes with a punching tool before using the buttonhole and pliers. Please pay attention to the direction of the buttonhole and the eyelet pliers, the wrong direction will cause damage to the buttonhole. Add the washer to the grommet, which can help make eyelets stronger, not easy to loosen. Practical Grommet Eyelet Plier Kit - 642pcs grommet tool kit 1/2 inch included 320pcs 1/2 inch metal eyelets in silver color, 320pcs matching metal washers in silver color, 1 x handhold eyelet punch pliers, 1 x hole punch. The matching washers will help your eyelets to be stronger and less likely to come loose. You can easily use the grommet kit to DIY by yourself; please confirm the size before purchasing Necessary Grommet Eyelets Washers - This 1/2 inch grommet tool kit comes with 320pcs metal eyelets washers in silver, which can help make eyelets stronger, not easy to loosen. Portable & Handheld Eyelet Pliers - These manual eyelet pliers with a special design, made of Carbon steel, chrome-plated on the surface, the handle of hole punch pliers is plastic-impregnated, which is comfortable to grip, easy to use and effortless. It is easy to take to any place. The eyelet pliers can apply the eyelets into a of materials such as fabric, leather, soft and thin plastic, acrylic, canvas, suede, and more Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Red & Silver Material:Metal Package Contents: 320 * 1/2 inch metal eyelets in silver color 320 * matching metal washers in silver color 1 * handhold eyelet punch pliers 1 * hole punch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.