Specifications Material: Nylon + EL wire Length: 1.2MFunction: a. EL technology. high quality reflective material c. bright intensity > 120LUXproviding bold blue flashing or steady light, the visibility is up to 200M .d. leash is strong, intensity of tension: > 70Kg e. Shining , flexible, and comfortable f . washable g. power saving ,long life, light weight power supply: AA*2pcs batteries Included.