The GoughNuts K9 Kup is an interactive toy, not for constant chewing. This Black K9 Kup is our most durable in the K9 Kup Line. Our Original GoughNut ring designs are the most durable design and should be used for power chewing.
This K9 Kup has been approved for training Guide Dogs.
Length or Outside Diameter: 3" X 5"
Tough Scale (1-100): 50