Brass Cord Ends, Cadmium Free & Nickel Free & Lead Free, PlatinumSize: about 3.5mm wide, 9mm long, 3mm inner diameter, hole: 1.5mm.Glue-in style cord end caps fit-up to insert about 3mm cord or chain.â Usage: Fit for DIY cord jewelries, tassels making, compatible with leather, tassel, lace, hemp, suede, rope and other various cord. â Easy to Use: First, attach a lobster clasp to the end cap with a jump ring. Second, apply glue inside the cord ends caps. Then, insert the cord end into the end caps and wait to dry.