Secure your parasol with the Charles Bentley Cast Iron Round Umbrella Base. Its classic black finish and elegant swirl design complement any outdoor setting. A convenient tightening screw ensures a secure hold, keeping your parasol firmly in place. Weight: 12kg. This cast iron umbrella base is finished in a black colour and features a swirl design. It has a tightening screw on the side to ensure the umbrella is secured inside the base. Keep parasols in place with this Charles Bentley Cast Iron Round Umbrella Base. This umbrella base is finished in a black colour and features a swirl design. Also, it has a tightening screw on the side to ensure the umbrella is secured inside the base. With cast iron construction, it weighs around 12kg.