[Elastic Barbed Cords]: Package includes 1 roll elastic barbed cords in black, 43.74 yards(40m) long, 2mm thick. And 100pcs metal barbs barbed fastener, 3.2x16x4mm. [High Elasticity Cord]: The elastic rope cord made of elastic fibre material is very stretchy and durable, in the range of allowable tensile elastic deformation, can easily restore the original length without deformation. [Easy to Use]: The elastic cord can be cut to any length you want, and then put the barbs to the two ends. The stretchy cord is wrapped around a roll spool, you can cut off the length you need and keep the rest on the spool for the next use. [Smooth Design]: These barbs designed with smooth edges to avoid snags. The elastic string with dual metal barbs make it easy to bind and hang items securely. [Wide Application]: The elastic barbed cords suitable for book binding, small items securing, bows making, headbands, spool sewing, and other DIY crafts, offer an ideal solution for all your fastening and bundling needs.