2 inch telescopic eyepiece filter for astronomical observations essential aluminum frame filter

Features:
Practically used to improve planetary vision and reduce light pollution.
Essential planetary and multiple color tool to meet your different needs.
Aluminum alloy frame and standard M48 x 0.75mm optical glass function, suitable for eyepiece market.
It brings much more and gives you better contrast.
Easy to use, enhance your interest in astronomical observations.

Specifications:
Component: Aluminum Alloy
Thread: M48*0.75mm
Diameter: approx. 5 cm.
Color: Multiple colors, please refer to the picture

Package includes:
1 x Filter (Eyepiece not included)

Note:
Please allow 1-2 cm error due to manual measurement.
Due to the difference between different monitors, the picture may not reflect the actual colour of the item.