Multiple combinations: grommet set includes hole cutter, matching pin and 100 through hole sets (each set includes 1 eyelet and 1 washer) and storage compartment do DIY tool: The grommet set is a cost-effective solution do repair tarpaulins, tents, awnings, pool covers, etc. Grommet eyelets can be more easily positioned in place za using a do hole cutter and stem. Durable and Easy to Use: Made of durable metal, do hole cutter and pin can be used for a long time Each set of metal eyelets and washers fit do well, will not break or get lost easily. Have a box do storage: come with a plastic box do storage, excellent do storage of a small tool do grommet, easy do find and download when sewing. Technical data: Color: Silver Black Material: copper Dimensions of plastic box: 17,2 x 9,2 x 2 cm Mesh size: inner hole diameter 10 mm, outer flange diameter 16 mm, height: 4,4 mm The package includes: 100x Set of grommet eyelets 1 x do hole cutter 1 x stem 1 x do storage box Only the above package contents, other products are not included. The acceptable measurement error is or - 1-3cm.