Description:Durable and Resilient: these spring toggle stoppers are made of nylon, which is lightweight, rust-resistant, and durable, and the elastic cords are made of draw texturing yarn, which is abrasion-resistant, not easy to deform, and has good resilienceEasy to Use: Plastic rope locks feature a spring-loaded design for easy locking of the rope to keep your rope tight and secure, and the flat end design makes it easy to compress and move up and down with little effort to secure the rope quicklyWide Application: Cord locks are widely used with elastic stretch cords for lanyards, luggage, clothing, backpacks, sports, shoelaces, tents and DIY craft projectsHandcrafted with Love: These single-hole cord locks for drawstring shoelaces are great for your DIY projects and daily needs.