Imixlot Wholesale 50pcs Lots 18g 3mm Eyebrow Jewellery Belly Tongue Bar Rings Gauge: 18g Needle:1.0mm in diameter Total length with ball:app 1.08cm Ball size:3mm Material: 316L surgical stainless steel & acrylic Quantity: "50 pcs"per pack in PP bag Horseshoe Ring Lip Tragus Belly Nipple Eyebrow Ring Circular Barbell Gague: 16G/1.2mm Ball Size: 4mm The ball of stud is independent and flexible, just screw it in case of falling apart