This rainbow circular barbell is a great choice for healed piercings. Made of durable 316L stainless steel with a rainbow PVD finish, it comes individually and can be bought in pairs by setting the quantity to 2. Available in sizes 18G (1mm) through 2G (6mm) with an inner diameter range of 5/16" (8mm) to 5/8" (16mm), this piece is perfect for septum, cartilage, and nipple piercings. The bigger the piece, the heavier it will be. For healed piercings.