Abstract: First and second tubular pole members are formed of rolled sheet metal material and provided with a lock seam defining a reinforcing rib extending inwardly and longitudinally along each pole member. The second pole member has a smaller external diameter than the internal diameter of the first pole member and is telescopically received within and spaced inwardly of the inwardly extending reinforcing rib of the first pole member. The light-weight construction of the pole members permits easy manipulation of the extension handle and the lock seam reinforcing rib provides sufficient rigidity and strength to prevent lateral bending of the pole members, even when the extension handle is fully extended. A locking device is provided for permitting telescopic adjustment of the length of the extension handle and for maintaining the extension handle in the adjusted position. The locking device includes threadably interconnected first and second tubular members which are molded of plastic for economical reasons.

Abstract: Integrally molded impaling spikes are positioned in aligned longitudinally and transversely extending rows throughout substantially one side of an applicator head. A cleaning component is provided with a layer of fibers to be penetrated and engaged by the impaling spikes when the cleaning component is pressed against the applicator head so that lateral movement of the cleaning component is prevented during use of the cleaning device. The cleaning component may be easily stripped from the applicator head for replacement by another cleaning component.