constructed out of 1-1/2 rigid pipe with heavy duty conduit clamps attaches securely to c-channel of up to 3 flange allows full tilt and horizontal adjustment of fan head all movable parts secured with set screw and/or bolts, nuts, lock washers or self-locking nuts makes relocating a fan fast and simple all parts are galvanized or properly treated and painted ends of 1-1/2 pipe protected by plastic caps three nylon ty-wraps furnished to route cord away from fan head