High-quality material: Metal capsule shoelace buckle is made of high-quality metal, strong and durable. 30 sets of shoelaces, 3 colors to meet your various needs for different shoesThread design: Shoelace buckle adopts threaded appearance design, which is not easy to loosen after tightening and does not slip compared with magnetic suction lock buckle.Outer Material: AlpacaInner Material: MetalEasy to use: Just tie the shoelace, install the screw lock, tie the knot, cut off the excess shoelace, and then tighten the screw lock. You only need to buckle once, so you dont have to tie your shoelaces.Convenience: Laceless shoelace buckle Quickly tie the cordless shoelace buckle It can save you time and effort, because you can put on and take off your shoes in a few secondsWide range of uses: Lazy shoelace buckles are suitable for men and women, adults and children, especially children. Not only shoelace buckles, but also as DIY to make earrings, bracelets, necklaces, etc.