FEATURES.Used for assisting in the placement of shaft. Put piercing bar in the end of the pin, then push it though. The pin will come out of the hole and piercing bar will be in. Great for changing jewelry. SIZE. The total length of the piercing taper pins: 34mm (1.33inches); Thickness option: 14G(1.6mm/0.06inch), 16G(1.2mm/0.04inch), 18G(1.0mm/0.03inch). EASY TO USE. Go slow when stretching,or using some lubricant,it glided through smoothly and painless. Push piercing bar through slowly to allow time to adjust. WIDE APPLICATION. Good threadless insertion pin to make you change piercing jewelry more safe and easily, protect your ear, nose, septum, navel, belly, lip, labret, nipple, eyebrow from getting hurt. Easy to operate, preferred aids for wearing body piercing jewelry. SAFE AND DURABLE. 316L stainless steel material, more safe, durable and smooth than acrylic taper insertion pin. Comfort and fit design, no harm to sensitive skin.