★ Japanese Operon Rubber for Making Stretchable Accessories [DIY] This is a very durable elastic cord that is used for making natural stone bracelets, handmade gifts, repairs, and remodeling. For Bracelets: This is a very high quality elastic cord that is used for making bracelets, handmade gifts, repairs, and reassembly. 【High Quality & Material】Japanese operon is durable and safe. Soft and strong elastic twine Perfect for jewelry making and so on.