The Lazer Brite Reflective Adjustable Breakaway Cat Collar features reflective material visible up to 600 feet away, sure to be seen by oncoming motorists for cat safety. Adjusts from 8-12". The collar features the same reflective material used by safety professionals. The buckle is designed to release if a cat's collar gets caught, allowing it to slip free. Do not use with leash or tie-out.