Luminous Silicone Cat Collar, Adjustable Cat Collar, Breakaway Safety Kitten Collar With BellIdeal Collar for Cats Kitten & Puppies Features of appearance: collar with Radium band and bell is convenient to find your pet, even in the dark, just light it on the collar, and the bell can help you hear from a distance pull in the opposite direction to open; the buckle can break loose by pet themselves in emergency as their strength is strong enough under that circumstance Adjustable length: the adjust length of this pet collar Waterproof Radium