The Gravity WB 123 B is a flat, heavy-duty round base made of cast iron and is suitable for extension tubes threaded M20. It is a sturdy base with a weight of 9 kg.
- Gravity WB 123 B
- material: cast iron
- color: black
- finish: powder coating
- threaded connection (female): M20
- diameter: 45 cm
- weight: 9.7 kg.