Easy Connection: Fits 1 1/4 inch and 1 1/2 inch hoses and works with standard pool poles (pole not included). Quick and easy setup for more efficient cleaning. Fast and Efficient Cleaning: Triangular design enables precise vacuuming along walls and corners for a thorough clean and debris removal. Side length 30 cm / 11.81 inches. Material: Made of PP material; lightweight yet sturdy, wear resistant and long lasting. Humanized Design: Transparent vacuum head with bottom brushes and clear view for easier visibility and convenient cleaning of walls, surfaces and corners. Use Scenarios: Regular pool maintenance: attach to a standard pole and hose to thoroughly clean walls, surfaces and corners as part of routine upkeep. After storms or windy days: quickly remove leaves and debris from walls and corners to restore cleanliness. Tight corners and edges: triangular head design reaches into corners and along edges where larger heads may miss.