Packaging: 6 pairs elastic cords in 3 colors, black, white, gray. 6 pairs metal clasp. You can use them on different shoes at the same time, enough to replace them.Material: these laces are made of polyester, offering comfort and support. Metal capsule buckle shoe laces are easy to install, stable without coming off after fixing.Size: The laces are 1.00m long, the capsule buckle length is 18mm (approximately).Easy to use: The elastic shoe laces only need to tie the shoelaces and tighten the screw lock, very convenient.Elastic no-tie shoelaces are perfect for kids, adults and seniors, and perfect for running, walking, hiking, cycling, etc.