Expand your RYOBI 18V ONE+ System with the RYOBI 18V 4 in. Clamp Fan. This 18V Clamp Fan is the ultimate in portability. Not only does it provide cordless power, but it has the ability to clamp to materials up to 1-1/2 in. thick, including pipe and 2-by lumber, providing optimal versatility on the jobsite or at home. With 2 speed settings and a multi-directional rotating head, the RYOBI 18V 4 in. Clamp Fan provides customized, personal airflow. The RYOBI 18V 4 in. Clamp Fan has unmatched airflow for its size, with over 180 CFM. With over 40 hours of runtime, you'll be able to stay cool all day long. Best of all, it is part of the RYOBI ONE+ System of over 300 Cordless Products that all work on the same battery platform. This 18V 4 in. Clamp Fan is backed by the RYOBI 3-Year Manufacturer's Warranty.