West Coast Jewelry Synthetic Opal Glitter Prong Set 316L Surgical Steel Belly Button Ring (Sold Individually) This listing is for (1) item ONLY. The opal is Resin Imitation. Balls are 5mm & 8mm. Due to hygienic reasons all body jewelry sales are final Shop with confidence. West Coast Jewelry has been a trusted seller for over 10 years and is dedicated to excellent customer service. Your satisfaction is 100% guaranteed.