Thank you for viewing. I purchased this in April of this year and used it twice, but I am selling it because I no longer use it. The condition is good, but please understand that it has been stored at home. No instruction manual, only the main unit and charger. Product Description For tired and troubled calves, The powerfully satisfying sensation becomes addictive. The Gorilla High Power series, with its powerful pump and air bags, "Gorilla's One-Hand Grip" is born! Perfect for first-time calf care, This is an easy and convenient type.