GSO's 1.25" 3x ED Barlow is the perfect choice when you need high quality images from a high magnification barlow. This ED Barlow will give you the quality that you deserve out of your telescope. The Barlow is Air-spaced, two-element, fully-multicoated ED lenses with excellent color correction, sharpness, and image brightness.

Barrel Size: 1.25 inch (31.7mm) Magnification Factor: 3x Optics: ED Grade Coatings: Fully Multicoated Weight: 122 grams Height : 126mm Dust Caps: 2 1.25" filter threads on bottom of barlow: Yes Made in Taiwan