Safe, fashionable and affordable, Lazer Brite collars feature the same super-bright 3M Scotchlite retro reflective material used by construction workers and safety professionals today. Visible to approaching motorists up to 600 feet away, this collar provides ensures maximum visibility for all dogs - including those with dark coats! For daytime use, this 5/8" wide collar also features a fun bones design on durable turquoise nylon. Suitable for small and medium size dogs, this collar easily adjusts from 12" up to 18" in length length. Not recommended for tie out.