DIY SHOE LACES: Unisex-adults kids elastic shoe laces metal connector. On most types of elastic no tie shoe laces use. Wear on shoes, basketball sneakers, boots and all you want.HIGHLY QUALITY MATERIAL: Alloy metal. SIZE: Length: 0.7", Diameter: 0.3", The hole diameter: 0.13".EASY TO INSTALL: Just wear a lace and tighten the screw lock. tie the knot and tighten the screw lock, it is very convenient. Fasten once and never tie your shoes again. turns lace up shoes into slipons so you don't have to worry about loose laces. Remember to get the length right, once you cut it off, the length is fixed.UNIQUE LOCKS SYSTEM: With Unique metal button design , you don't need to worry the shoe laces being loosen frequently, saving the time of tying the shoelaces.Say goodbye to tying shoes, only fit and comfortable.What YOU GET: The package comes with 8 metal connectors,3 colors,4Silver, 2Golden, 2black,enough quantity for you to use and share with friends and families. They can work on boots, work shoes, tennis shoes, sneakers, casual shoes or any other shoes you have.