Upgrade your footwear with the Lock Laces, the no-tie lacing system that turns any lace-up shoes into comfortable, slip-on sneakers. Designed for performance and convenience, these elastic laces stretch to provide a secure, custom fit while reducing pressure and improving comfort with every step. Perfect for runners, Lock Laces are easy to install and fit all shoe sizes. Whether you're training, traveling, or heading out for the day, Lock Laces keep you moving with zero fuss. Features: No-tie lacing system turns any shoe into a slip-on Stretch-fit elastic laces offer comfort and compression One size fits all (kids and adults) Easy to install with included instructions Includes 2 elastic laces (48"), 2 lock devices, and 2 cord clips (for 1 pair of shoes) Specifications: Lace diameter: 6 strands, 0.22 cm