Patented L.E.D. illumination is visible up to 1000 feet in the dark
Nylon collar is strong, flexible, and weather resistant; LED switch can be removed for water play
L.E.D. has two modes: flashing and steady glow; long life replaceable battery included
3 adjustable sizes: small 10 to 13 inches, medium 13 to 18 inches, and large 18 to [...]