These lights for shoes are made of aluminum alloy and ABS plastic with fine workmanship. They have 3 lighting modes: steady on, flashing or slow flashing, and are IPX5 waterproof. The lights improve visibility when going out at night, perfect for hiking, biking, running or night walking, and also helpful for night walking the dog. They last 75 hours or more on the highest setting and are super bright and durable.