Swivel frame Ø 30 cm set
This can be bought as a spare part or replacement unit for your current windsock assembly.
Place the windsock over the frame so the windsock can easily catch some wind and show you the windspeed and direction.
Two stainless steel roller bearings cause a smooth rotation even at very low windspeeds.
The swivel frame is unlighted.But a lighted frame can be found here.
The windsock is not included but can be bought here.
How to choose the right windsock
2 Heavy Duty Stainless Steel Bearings