NEVER need to tie shoelaces. is an elastic shoelace with lock when you wear a pair of sports school shoes. You are no longer affected by a pair of shoelaces. You win with the competition whether you're participating in your local park racing or the marathon. STRETCH FIT COMFORT: Our elastic shoelaces fit your feet. Excellent compressibility reduces pressure points to make your feet feel better all day long, so you can do your best! EASY INSTALLATION: One size fits all (kids and adults), quick to install, easy to use . Each pair is suitable for a pair of shoes. Easy installation instructions and videos are available. PERFECT FOR EVERYONE: RJ are suitable for children and adults and for those with arthritis and runners who want to improve their speed from the competition.