Never need laces tying at the.if you have a few for sport/school wear. They do not affect more of a pair of laces. You Win with the competition, whether you're on your local park racing or take part in the Marathon. Stretchy fit comfort: Our elastic laces fit to your feet. Excellent complete reduces pressure points, so that your feet all day long make, so that you can do your best. Easy to install: One Size Fits All (children and adults), quick to install, easy to use. Each pair is to a pair of shoes. Simple installation instructions and videos available. Perfect for any: Lock Laces are popular with children and adults alike and good for people with arthritis and the runner who wish to improve your speed of the competition.