Specifications: S = width 1.5 CM * Length 120 CM ----- emission length 30 CM M = width 2.0 CM * 120 CM length ---- Emission length 30 CM L = width 2.5 CM * 120 CM length ----- Emission length 30 CM Product name: dog LEDsMaterial: polyester straps, translucent surface of the fish screen, flat fiber of the bright guide light (new material) Color: red, blue, yellow, green, orange, pink.Flashing mode: long light. Slow flash flash (via switch control) Packing: one in an OPP bag, each has a code number and color stickers Battery: 2 pieces CR2016 (include) Button battery Battery life: 60- 80 hours, 2-3 normal months; The battery can be replaceable, convenience stores or supermarkets available. By the removable electronic cleaning part of the product is suitable for a dark environment or walking the dog at night, outside and pet movement through the bright fiber optic light, from a warning, while expression of individuality, fashion design, day or night, When you turn on and off a light emission function, it is suitable for the use of pets.