Auihiay 24 Pairs Flat Colored Shoelaces for Sneakers Skate Shoes Sport Shoes <br><br><b> Features:</b> <br>- Colour: 24 assorted colour. <br>- Material: durable soft polyester and nylon. <br>- Each shoelace size (L x W): about 137 x 0.9 cm / 54 x 0.35 inch. <br>- Simple and fashion flat shoelaces shoe laces strings, very cool. <br>- Can help add a splash of colour to your loved shoes. <br>- Beyond the length of others, suitable for any type of casual shoes, or boots, even skates and etc.<br> <br><b>Tips: How long of the shoelace you need?</b> <br>How many pairs of shoe holes are there on the shoe: n <br>Distance between two adjacent shoe holes: d <br>Distance between the hole on the left and the hole on the right: g <br>Remember the following formula: X = G + 2n * sqr (d ^ 2 + g ^ 2) <br>This formula only considers the length through the shoe hole, not the length required to tie the bow. The average shoe bow tie needs about 50cm. <br>In other words, X + 50cm is the length of the shoelace you need! <br>For example, button laces do not need to be bowed, and the length of the laces is 30-40cm less than ordinary laces. <br> <br><b>Package Include:</b> <br>24 pairs of flat coloured shoelaces <br> <br><b>Note: We are upgrading packaging to provide better service. If you receive fewer shoelaces, please contact us.</b>