Magnet quantity: 6 pairsDiameter: 4cm * 2.5cm6 pairs of magnets providing strong gravitation, it would not loose in sportsConvenient and , you do not need to lace up after the first tieMultifunctional, it can be used not only to tie shoes but also to hang the shoesColor:BlackMaterial: plasticUnisex and all-match, suitable for most of sports shoes and casual shoesPackage Contents:1 Pair Magnetic shoelacesOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.