Solid Lock Laces® No-Tie Shoelaces and they look great in any shoe from athletic to casual everyday wear. Features: ・Each pair of Lock Laces contains 2 48” elastic laces, 2 lock devices and 2 cord clips and is suitable for lacing up one pair of shoes. ・Turn any pair of lace-up shoes into slip-on sneakers. ・Lock Laces®, originally designed for triathletes, are great for seniors suffering from arthritis or other disabilities, kids, individuals with special needs, runners of all ages, and casual users! ・One size fits all (kids and adults), quick to install, and easy to use. Each pair is suitable for lacing up one pair of shoes. ・These elastic laces conform to your foot for a custom fit. Added compression reduces discomfort so you can perform your best! ・Lace Diameter: 6 Strands, 0.22cm