1、Exquisite LED luminous shoelace, a variety of different colors, nylon webbing. Super bright LED, high light guide, strong light concentration, good exposure.  2、There are 4 modes to choose from, colorful fast flash, colorful slow flash, a variety of light colors slow flash fast flash cycle and off mode.  3、Shoelace battery, each shoelace uses 2xCR2032 button batteries, a pair is 4pcs. Continuous discharge for 20 hours under the condition of long light, flashing or intermittent discharge is about 40 hours, normal use for 2‑3 months, the battery can be replaced by yourself.  4、Helps improve visibility and safety at night, making running, walking, biking and other outdoor sports safer at night. Washable and waterproof, easy to use, light to carry, shoelaces are waterproof, but the battery box is not.  5、Suitable for many types of footwear, including sports shoes, running shoes, boots and roller skates, etc., very suitable for skating, outdoor sports, night running, large festivals, concerts, concerts, cheering activities, holiday promotions, birthday gifts.