Jewel Internal Ball 1.2mm thread for Micro Dermal Implants 2.0mm, 2.5mm, 3mm, or 4mm in 14 jewel colors Gem is genuine Swarvoski Material is 316L ASTM F-138 Implant Grade Stainless Steel Use with our Microdermal anchors or with our internally threaded labrets or with any of our 14g internally threaded jewelry Thread length is 2mm Thread pattern is 1.2m Made from 1 solid piece of material You are buying 10 jeweled tops ONLY. Price per piece is .72 cents. You will need to buy the anchors separately.