Feature: Item Condition: 100% New! Material: Silicone The size selected will be the measurement at the wearable area. All items are shipped based on the mm size selected. Wearable Area (length): about 8mm Diameter: about 10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm Gauge: 2g(6mm), 0g(8mm), 00g(10mm), 1/2"(12mm), 9/16"(14mm), 5/8"(16mm), 11/16"(18mm), 3/4"(20mm) Included: 2 piece