Billy Goat Blowers are built with the professional in mind. Features include: lightweight molded housing, comfort easy grip handle and 16 blade fan that eliminates the dreaded gyro effect common with other blowers. Seven models with engine options from 6 to 18 H.P. Billy Goat Blowers have unsurpassed air velocity and performance to let you get more work done in less time. They have been rated as the quietest blowers in the industry. These units are the only blowers in the industry with hand operated air flow directional control.