Cooper is going to be a beautiful adult dog with his full collar and blue eyes. Very playful and loves his attention. We enjoy raising several Aussie litters a year in our home. They receive the best of care, excellent nutrition and lots of one on one attention. Dad is a beautiful 20" black tri with champion bloodlines and Mom is a 16"red merle, both ASCA registered. Cooper will probably end up at around 18" shoulder heighth. We offer a 3 year health guarantee. Call us at 605-786-2058 with any questions.