T2 Extension Tube for Telescope M48x0.75 10mm

1 All metal, anodic oxidation alumina manufacturing process, can used for a long time. 2 Using this extension tube, can obtain correct image scale. 3 Inner wall has extinction treatment, avoid radiating light affect imaging. 4 Fine workmanship, sturdy, durable and long service life. 5 Four lengths for you to choose, to meet different needs and requirements.

What's in the box
1 x Extension Tube