HonFitat Lde Shoelace Night Running Light Up Safety Shoestring Multicolor Luminous Shoelace -Blue

Amazon.co.uk Price: $8.32 (as of 09/04/2023 12:39 PST- Details)

Withstand tension: 3KG
Battery: Each shoelace use a CR2032 coin cell battery. Under the long bright circumstances continuous discharge 30 hours, flashing or intermittent discharge is 60-80 hours, normal use 2-3 months, you can replace the battery yourself.
Instructions: After lacing the shoelaces, shoelaces ends through the hole lock and insert into lighting hole, then rotate to LOCK. Press the middle button, press once long bright, twice quick flash , three times to slow flash, four times that close.