fibropool professional flexible swimming pool vacuum head fibropool unlike many consumer-grade solutions on the market today, the fibropool professional flexible vaccum head has been created using only high-quality materials. the traditionally stiff, pvc body and wheels have been upgraded to a thermoplastic urethane to ensure ease of maneuverability along all pool surfaces regardless of material or contour. cheap, plastic ball bearings and handle are now made of a robust, non-corrosive metal. no corners have been cut to ensure this will be the last vacuum head you’ll ever buy.