VALYRIA 2Set Polished Stainless Steel End Cap with Lobster Clasp Connector Leather Chain Necklace Findings Material:stainless steel Length:9.5mm( 3/8");Outside diameter:3.8mm( 1/8");Inner diameter:3mm( 1/8"); Ring Size:5mm( 2/8");Lobster Clasp Size:10mmx5mm( 3/8"x 2/8"); you can DIY to make bracelet and necklace with rope or chain Create a really attractive piece of jewelry