GoughNut Buster 50- The GoughNuts Buster 50 is an Extra Large chew toy (our largest and most durable) was designed to address the simple but serious issue of SAFETY. The GoughNuts chew toys are designed knowing that safety and fun go hand in hand. Each GoughNuts pet toy has included in it's design the GoughNuts safety indicator where Black/Green means "GoughNuts" and Red means "Stop". The GoughNut Buster 50 Black Ring is recommended only for the extreme chewer. This Chew toy will be too large for most dogs. The cross section of the Buster 2.5 inches and weighs 2 pounds. The goal is to match your dogs power and comfort zone creating a safe chew.