RLC Cat Adjustable Collar with Breakaway Buckle, Reflective material, 3/8-Inch, Pink The 3/8-inch cat collar adjusts for a neck size of 7-inch to 11-inch. It is a collar with a breakaway buckle. The reflective material strongly reflected in a light was sewn up on the tape. Fashionability and functionality were combined. The bell is attached to the collar.