Product Details:• Color: Black• Material: Nylon•Overall Size: 20mm x 15mm x 7mm/0.79" x 0.59" x 0.28"(L*W*H)• Package Content: 12pcs x Cord End TipsMaterial - Made of nylon material, it is light, wear-resistant, flexible, durable, not easy to break or deform, and can be reused for a long time.Feature - Featuring a multi-tooth internal design, simply insert the line into the tail clip and gently pinch to secure. The teeth firmly bite the rope installed at the end of the rope and will not loosen easily.Application - The cord locks quickly and easily connect two strands of rope for use on shoes, sports wear, boots, purses, drawstrings, paracord and other DIY projects.