100pc 1/4" Grommets Eyelets for Clothes, Leather, Canvas - Self-Backing Get professional results making your own grommets/eyelets One-piece metal grommets are self-backing; 1/4 inside diameter, 1/2 OD flange, 3/16 barrel length Steel with silver finish Use mandrel & anvil or crimping pliers to set - not included, available separately