In the dark and in poor visibility, people and dogs are often hard to see. Many heart-stopping moments and accidents could be avoided if pets were equipped with reflecting, luminous or flashing devices. This Trixie flasher is the perfect way to keep your animal safe and seen while out walking in the dark. Flashing light red and blue, made with metal and chrome. Approx. 30 hours flashing light. It comes with one set of spare batteries.