This 2kg (~5 lbs) counterweight can be used for the following iOptron mount:
- CEM40/CEM40EC* (Old versions with 20mm diameter CW shaft)
- iEQ30/iEQ30 Pro
- AZ Mount Pro
- MiniTower Pro
- MiniTower II
* Check your CEM40/CEM40EC mount CW shaft diameter before ordering.
It can be used for other mounts with a 20mm diameter counterweight shaft.