This no-tie lacing system can turn any pair of lace-up shoes into slip on shoes. The comfort elastic laces conform to your foot for a custom fit. Added compression reduces pressure points to make your feet feel better so you can bowl your best! You can easily lace them up nice and tight or looser depending on your needs. These are so fast and easily to use, have your shoes on in seconds when you're running late to league! One size fits all (kids AND adults), quick to install, easy to use. Each pair is suitable for lacing up 1 pair of shoes. Easy 5 minute installation, lace, put both ends through the round eyelet clamp, pull, trim to about 3 inches left over and install clip shut end clamps...Done!