Cal-Hawk 103pc Brass Grommet and Washer Installation Kit 103 Piece Set 3-pc. Drop forged, zinc plated grommet punch tools 50-pc. 1/2" rust-proof brass coated grommets 50-pc. 1/2" rust-proof brass coated washers For use with tents, sleeping bags, tarpaulins, canvas awnings and pool covers