Adapt-A-Pole 8ft Fibreglass extensions. Pre-drilled. NOTE: The FIBREGLASS POLES listed on this page are designed for commercial use. They are constructed of rigid fiberglass and the telescopic models come with the E-Z Lock compressiontype locking device. They are manufactured to withstand abuse such as required by professional pool service people, in heavy use area and where protection from electric shock is mandatory. Our ALUMINUM POLES are constructed of high quality DRAWN ALUMNUM TUBING. This assures greater strength compared to welded tubing. Aluminum telescopic poles also come with the E-Z Lock device. Either type of pole is a wise choice where safety and reliability are the main concerns.