Product Description1. To match your outfit, you can choose fluorescent shoelaces in your favorite color.2. The shoelaces are made of environmentally friendly fluorescent materials, which are waterproof and washable, have good color and high quality.3. The simple design is suitable for any shoe type and is an ideal substitute for traditional flat shoelaces.product specificationsMaterial: polyester yarn, luminous PP yarnColor as shownDimensions: 100cm/39.3in.Packaging Information:10 pairs of shoelaces.Precautions1. Please place the shoelaces under a light source (sunlight or lamp) before use.2. Let it fully absorb light for 10-15 minutes, then place it in the dark. You will see the lace flash.3. The stronger the brightness of the absorbed light source, the better the luminous effect.