The GoughNuts Ring Dog Toy was designed to give pups a safer, tougher chew toy. This natural rubber ring is made in the USA using engineered carbon reinforcement. Each GoughNuts toy has two layers — the outer color indicates the strength, and the inner core is always red to serve as a safety indicator. Red means stop, so when a dog chews down to this red layer, you know it’s time to order a new GoughNuts Ring. This GoughNuts Ring bounces, rolls and even floats, so it can stand up to extreme games of fetch and all types of outdoor play.