BodyJ4You 8PC Circular Barbells 16 Gauge Eyebrow Ear Tragus Septum Nipple Horseshoe Rings 8PC VALUE PACK: 4 Pairs Circular Barbell Horseshoe Hoop Piercing Ring Annealed Surgical Steel Piercing Hoops 16 Gauge Multi-Functional Hoop for Nipple, Nasal Septum, Ear Cartilage, Helix and Tragus Piercing. MEASUREMENTS: Surgical Stainless Steel Barbell Thickness Gauge Size: 16G (1.2mm), Length Size: Pair of 1/4" (6mm), Ball Size: 3mm, Pair of 5/16" (8mm), Ball Size: 4mm, Pair of 3/8" (10mm), Ball Size: 4mm, And Pair of 1/2" (12mm), Ball Size Diameter 4mm. MATERIAL: High Quality Surgical Stainless Steel Jewelry is Very Strong, Provides Lasting Color Retention, is Resistant to Tarnishing and Extremely Easy to Clean. HIGH POLISH Smooth Surface Body Jewelry Ball Closure Ring. Multi-Purpose Horseshoe Circular Ring - May Be Used for Tragus Piercings, Cartilage Piercings, and Helix Piercings. SATISFACTION GUARANTEE: All BodyJ4You Items Are New And Unused. Guaranteed Satisfaction As We Offer 90 Day Money Back Guarantee.