A lightweight extendable and retractable telescopic pole is disclosed comprising a plurality of non-metallic telescoping cylinders with sliding and sealing surfaces between the cylinders, a first plug member on the upper end of the smallest cylinder, and a second plug member on the lower end of the largest...http://www.google.es/patents/US5333422?utm_source=gb-gplus-sharePatente US5333422 - Lightweight extendable and retractable pole
