Feature:
1.25Inch variable Polarizing filter acts like a dimmer switches for .
Adjust the amount of light transmission from to 40% by rotating filter housing.
Reduces brightness of Moon or planet for great clear viewing.
Finers control of the Images brightness compared to fixed-transmission filter for Performances.
Fit standard sized 2" eyepieces and accessories.

Specification:
Materials: Metal
Diameter: 31.7mm/1.25inch

Note:

Please allow 1-3mm error due to manual measurement. make sure you not mind before bid.
Due to the differences between different monitors, the picture may not reflect the actual of the item. Thank you!

Package includes:
1PC Variable Polarizing Lens Filter