Titanium 18/16g Internally Threaded End Material | Titanium 6AL4V ELI ASTM F-136 (Nickel-free) Manufacturer | Industrial Strength (IS) Size | 4mm overall Gemstones | 1.5mm (2) Swarovski Gems Sku | TNBDUOFGE from Industrial StrengthAll Jewelry from Industrial Strength is guaranteed against manufacturing defects for lifesold individuallyposts sold separatelypick your post here! 14g threading available at no extra charge - please indicate in ordering note Custom gem combinations available at no extra charge - please indicate in order note