The CG-4 Polar Axis Finder by Celestron makes polar alignment easier than ever! Whether you're a seasoned astrophotographer or a beginner, this intuitive accessory can help you quickly and accurately align your telescope mount for optimal tracking of the night sky. Featuring an illuminated polar scope reticle, a built-in bubble level, and a sturdy aluminum construction, the CG-4 is your perfect companion for a night of stargazing.