Troy-Bilt TB400 gas blower features blowing speeds up to 180 MPH and clearing power of up to 400 CFM (cubic feet per minute). Comfortably blow leaves and debris from yards and hard surfaces. 25cc 2-cycle gas engine for more consistent, dependable power and a lighter weight to combat user fatigue until the job is done. Variable speed throttle provides enhanced control over performance, directing air flow at your preferred speed and compact tubes allow for easy handling. 2 year limited warranty.