Size Information: The package contains 6 pieces of 20g tapers stretching kit, specification size: 20G (0.8mm), piercing insertion The upper part of the tool is 4mm long, the lower part is 30mm long, and the base is 0.8X8mm. In order to make it safer and easier for you to change piercing jewelry, please pay attention to the size information Scope of Application Piercing tools for changing jewelry are only suitable for nonthreaded piercing jewelry. The edges of the stretching piercing kit are smooth and polished, and will not hurt the skin. But you can also use some lubricant to make it slide in smoothly and avoid pain. Ideal Piercing ToolsBody Piercing Assistant Tools Assist in guiding threadless Helix,Conch,Tragus,Lobe,Rook,Daith Piercing Jewelry,Cartilage Earring through your piercing much more easily. Easy to Use: 1.Put a half part of piercing taper into piercing hole. 2.Push piercing threader tool bar into the pin of the taper, then push through totally piercing hole slowly and softly. 3.Take the taper out of the hole and let the jewelry bar stay. 4.Put on the piercing top or bottom. Reliable Material The earring threader tool is made of reliable stainless steel, which will not hurt your skin and protect your ears/nose from scratches or injuries. It not only ensures the strength of the ear stretching kit during operation, but also ensures that the ear tissue will not be damaged due to excessive hardness.