Ruffwear Web Reaction Collar Sizes:23in 26in the Catit Loo offers cats free of added hormones the Catit Loo offers cats enough room to dig Lamb Meal Oatmeal Brown Rice Chicken Fat (Mixed Tocopherols) Tomato Pomace Brewer's Yeast Threonine Potassium Chloride DL–Methionine Taurine Calcium Propionate Blueberries Raspberries Cranberries Minerals (Zinc Proteinate Iron Proteinate Calcium Carbonate Manganese Proteinate Copper Proteinate Selenium Yeast Calcium Iodate) Vitamins (Vitamin E Supplement Niacin Thiamine mononitrate D pantothenic Acid Vitamin A Supplement Riboflavin Pyridoxine Hydrochloride Biotin Vitamin B12 Supplement Vitamin D3 Supplement Folic Acid) Glucosamine Hydrochloride and strong and comfortable webbing that holds its color WHAT’S NEW: Webbing now includes recycled content for a reduced impact on the planet