Check the listing for details. 500 3/16" SELF PIERCING MEDIEVAL COSTUME CORSET METAL GROMMETS #00 (4 COLORS). Condition: New. Listed at 37.42 USD. * Perfect Size Grommets for your Medieval/Fantasy/Historical/Renaissance Faire Costumes and Corset Eyelets! * Includes: 500 Sets Grommets & Washers (1,000 Pieces) in your choice of color - Brass (gold), Nickel (silver), Black, or Antique Brass #00 Hole Size After Setting = 3/16" ~ 5mm 100% Solid Brass Self Piercing No iron, no steel. These grommets will not rust! Actual Measurements: Hole Size after setting: 3/16" (5mm) Flange diameter: 0.378" Length under flange: 0.209" NO NEED TO PRE-PUNCH ON MOST MATERIALS WHEN USED WITH SELF PIERCING DIE PRESS USE WITH ClipsShop Grommet Setters and #00 Self-piercing setting DIES PLEASE NOTE: THESE GROMMETS WILL ONLY SELF PIERCE ON THE CSTEP OR OTHER MACHINES THAT HAVE SELF PIERCING DIES. IF USING WITH A PRESS THAT DOES NOT HAVE A SELF PIERCING DIE THEN IT WILL REQUIRE A "PRE-PUNCHED" HOLE. Self piercing means you can skip the step of punching the hole on most materials when used with a self piercing die press. These cannot be price compared to regular grommets as those will not punch through materials without first pre-punching a hole. These are quality brass grommets. We sell only the best. Need More Information About Grommet Sizing Before You Can Make Your Purchase? SELF PIERCING GROMMETS: SIZES