Coastal's Lazer Brite Reflective Open-Design Adjustable Dog Collar features reflective material visible up to 600 feet away. This reflective dog collar will be seen by motorists for dog safety. To be safe, you must be seen. Coastal's Lazer Brite Reflective Adjustable Dog Collars are made from the same reflective material used by safety professionals. This collar is great for dogs who love to be outdoors.