✿[Curved Version]: 2nd Generation - Compared to the first generation which was straight and was complained to be difficult to use. The second generation is designed to be CURVED and easier to pass your piercing holes. ✿[Hypoallergenic Cartilage Tool]: Made of ASTM F-136 implant grade TITANIUM, more advanced than 316l surgical stainless steel. Hypoallergenic for sensitive skin. ✿[Quantity]: 2 Pcs 16g and 14g piercing kit stretching taper. Make your piercing jewelry much more easier to wear. Come with a GIFT BOX. ✿[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. ✿[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.