With these elastic shoelaces, you can add a slip-on, quick-tie, snug-fitting experience to your shoes, and get rid of the endless hassle of tying shoelaces. - Easy Adjustable Tension: Dial in the tightness for extra support before a walk or relax to give your feet room to breathe. -Stretch-Fit Comfort: Our firm yet flexible elastic laces hug your foot for added comfort and support as your feet swell throughout the day. -One size fits most, perfect for kids, adults, seniors and pregnant women, quick to install, easy to use. -Simple Installation: Get up and go with Lock Laces in just 5 minutes with our easy installation instructions. -Durable and Water Resistant: Locking shoelaces are tough enough to withstand the tests of everyday life. Your shoes will wear out before your laces How to use: 1. Press the lock button and thread each lace through the lock. 2. Use scissors to cut the laces that match your length under the button loop. 3. Insert the ends of the shoelaces into the clip and press the clip to close. Specifications: Material: Elastic latex Color: black, white, red, fluorescent green, purple, gray Lace length: 100 cm Lace diameter: 0.4cm Quantity: 6 Pairs Package Includes: 6 Pairs x Elastic Shoelaces Warm Tip: The elastic shoelace is 100cm in length and 0.4cm in diameter, suitable for most sports shoes and sports shoes. We recommend that you take a measurement before placing an order.