Various specifications are available. According to your choice.
It can adjust eyepiece location;help you to get more sharp image.
Application:Support all types of telescopes, reflector, refractor, to observe the star clusters, moon, , planets and other celestial bodies.
Description
Counterweight shaft Diameter: 20mm; length: 30cm
counterweight shaft Diameter: 20mm; length: 30cm.
30CM Length 20MM Diameter Counterweight Shaft.
Various specifications are available. According to your choice.
Package includes: 1pcs. According to your choice.
Only the above package content, other products are not included.
Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.