Product Details Flatback Insertion Tool - Silver Titanium Jewelry Taper used to easily put on your threadless flat back earrings.This titanium pin taper can be used with threadless body jewelry. Select your Gauge Size to purchase. Sizes are available in 16 Gauge (1.2mm), 18 Gauge (1mm) and 20 Gauge (0.8mm)INSTRUCTIONS: Push taper through piercing so that hollow end is facing where the backing post will be inserted. Put piercing jewelry barbell in the end of the pin, then push it though. Pin will come out of the hole and piercing bar will be in. This threadless taper is made from implant grade titanium and has an anodized coating for a safe and smooth insertion. This taper tool makes changing threadless piercing jewelry a breeze! Specifications 2" (50mm), Titanium with Anodized Coating, Use with Threadless Body Jewelry