Boulder opal stone plugs! These plugs are natural and handcrafted with marble-like, opal designs throughout. This pair you see here is what you will get when you purchase. This is version 1 of 1 in this 11/16" size. Size is 11/16" (18mm). Wearable area is 8mm. Full length is about 9mm-10mm. Handle with care. Sold in pairs (2 pieces). For healed lobes.