【Magnetic Grommet Pliers】: These tarpaulin grommet pliers feature a magnetic top that easily attracts and secures grommets in the correct position, preventing them from falling off and saving significant time and steps during use. 【300 Washers】: This washer kit includes 300 washers, each with an inner diameter of 10mm and an outer diameter of 16.5mm. The washers are made of pure copper with a galvanized surface, providing excellent rust and corrosion resistance and durability. 【Easy to Use】: This grommet fastening kit is easy to use. The grommets and washers are attached to the top of the grommet pliers. By pressing the handle of the pliers, the grommets are installed directly, using leverage to generate strong pressure for drilling and direct installation of the grommets. 【Wide Range of Applications】: This grommet fastening kit is suitable for installing and hanging various tarpaulins, tents, and curtains. It is also suitable for decorating clothes, bags, and accessories, as well as for making various crafts. It can be used on leather, awnings, canvas, PVC tarpaulins, banners, cardboard, etc.