these threaded tapers pins are made of stainless steel and used to stretch your piercing to the gauge of the taper. the threaded tapers will fit any body jewelry with standard metric threading and assists in inserting your new jewelry of the same gauge as the taper into your piercing. these tapers can be autoclaved and reused Gauge=00g, 0g, 2g, 4g, 6g, 8g, 10g, 12g, 14g, 16g
