Cobalt SF Bullet Holes by Gorilla Glass Size:2 gauge (6mm) They have a wearable area

They have a wearable area of approximately 3/8" between the flare and o-ring

Weight: ≈27 grams each piece

They have a 1/4" insertion gap

Weight: ≈  grams each piece

The 1/4" long barbell is hinged on one side and snaps firmly shut on the other

Cobalt SF Bullet Holes by Gorilla Glass Size:2 gauge (6mm) They have a wearable areaThese single flare cobalt bullet holes are made from hand blown glass by gorilla glass. Size availability is limited by the availability of raw material (glass tubing). These are only available in the specific sizes we have listed here. They have a wearable area of approximately 3 8" between the flare and o ring. These don't have a groove for the o ring. Two clear silicone o rings are included. Choose your size below.