Adjustable ‘moon-collar’ design made of coated Nylon with a separate inflatable liner. Easily cleaned by wiping with a damp cloth. This collar is more comfortable and practical than a conventional Elizabethan collar. It allows circulation of air around the ears, but protects them from rubbing and scratching. It is great to prevent access to the trunk and back legs but may not stop licking of front paws. Replacement liners not available. Dimension is collar internal diameter (for maximum neck size).