Elastic laces that fasten with a magnet instead of a knot. You thread them once, cut them to length, and after that the shoe opens and closes by pulling the two metal buckles apart and clicking them back together.Because the laces stretch, the shoe keeps its shape and can be pushed on without loosening anything. The buckles snap together with one hand and do not need a pinch grip, which makes them useful if tying laces is difficult or slow. Plenty of people buy them so a laced style of shoe stays an option rather than switching to velcro. One pair fits one pair of shoes.Details 105cm long, 3mm diameter, elastic Two laces (one pair) and two silver metal magnetic buckles Trim to length with scissors once fitted Shoes not included Please note: the buckles contain magnets and are small enough to swallow. Keep away from children under three, and away from anyone with a pacemaker or implanted medical device. Lace length can vary by 1 to 5cm.