The Goughnuts TuG is an interactive tough, durable product. Please continue to rely on our GoughNut Rings (that have a safety indicator) for constant power chewing. The GoughNuts TuG is for larger dogs. The Tug is 11 inches length, 6 inches in width, and has a 1.5 inch cross section. The goals remain the same in that we want to provide the safest possible products that are durable and fun. The rubber is the same recipe as used on the rings but we have marked the outside with red to show that here is not a safety indicator in this product (as again it is for interactive play versus constant chewing).