Silli Me Jewels: 2 Pack Replacement Black Silk 2mm Cords with Safety Breakaway Pop Barrel Connector Package of black replacement cord (enough for 2 -31-32" necklaces) and 2 sets of black pop barrel connectors for pendants or charms Breakaway barrel connector for quick release and safety. "Silk" 2mm Rat-Tail (Chinese Knot) Jewelry Braid Cording. Can be cut and assembled to your preference. Ideal for additional cord for Silli Me Jewels teething pendants and Flip Flop Chews Good for DIY beading projects and jewelry designs. Black cord is often preferred with teething pendants.