Premier Pet Products' TWICE AS NICE KITTY COLLAR is the ultimate in safety and comfort for cats. It's the only collar that combines dual safety features of stretch elastic and a break-away safety snap. Now you can keep track of kitty around the house plus know that if he does wander outside, he'll just scare the birds away with his bell and not be able to catch them. You can also add your own ID tag and not have to worry about kitty getting lost! You may want to order a spare in case kitty comes back minus his collar (If he does, you know it worked to save his life!). 3/8 inch wide, one size fits all (8-12 inches).