✿[Hypoallergenic Cartilage Earrings]: Made of ASTM F-136 implant grade TITANIUM, more advanced than 316l stainless steel. Hypoallergenic for sensitive skin. ✿[Quantity]: 2PCS - 18G(1.0mm) piercing kit stretching taper. Make your piercing jewelry much more easier to wear. ✿[Usage]:①, stretch your piercing to bigger size - 20g to 18g/16g/14g. ②, Assist in guiding internal thread TRAGUS HELIX EARRINGS through your piercing much more easily. ③, Assist in guiding internal thread NOSE STUDS NOSTRIL PIERCING through your piercing much more easily. ④, Assist in guiding internal thread LIP PIERCING JEWELRY through your piercing much more easily. ✿[Size]: Internal thread guide taper pins length: 30mm(3cm). 18g/16g/14g available. ✿[Attention]: ①, You should use some vitamin e or mineral oil for lubricant while stretching. ②, This insertion pin taper ONLY for INTERNAL THREAD piercing jewelry. ③, This titanium insertion pin is very good for sensitive skin.