1. Product material: ABS+LED2. Product size: 9x6.5x3cm3. Product battery: 2 pieces of CR2016 batteries, or 2 pieces of 2032 batteries4. Light-emitting mode: long light~fast flash~off5. Product unit weight: 28g6. Different light colors are shipped randomly, red, yellow, orange, blue, green and white.7. It emits a strong luminosity at night, suitable for all kinds of night sports lovers, such as running, climbing, cycling, street dancing, etc.; it can play a safety warning role, and is suitable for carrying on arms, sports shoes, various mountain bikes, etc.

http://olla.gr/5-pcs-glowing-shoe-clip-light-flashing-shoe-clip-outdoor-sports-warning-light-night-running-equipment-random-color-delivery/