The handles are made of premium grade drawn aluminum tubing, stronger than extruded. The tubing is also anodized, offering the best protection against corrosion. The handles are lightweight and durable with vinyl non-slip hand grips. We offer telescopic flow-through handles, telescopic handles, fountain handles and standard handles. The telescopic flow-through handles are of patented design. The handle attaches to standard garden hoses and has a built-in water control system. At full pressure, clear rinse water shoots from the brush's center without flushing soapy solution from the bristles. Our "New" industrial series is manufactured out of larger (1") diameter drawn aluminum and has a longer reach (48" - 96"). This handle is designed for the heavy duty user. Handles are available in either a snap clip or an acme thread.