The barlow increases the magnification of any 2 inch or 1.25 inch eyepiece by two and a half times
Fully Multicoated Optics with 4-element lens system; hard-anodized aluminum barrel is threaded to accept 2 inch filters
2.5x Magnification with anodized Aluminum Housing; 2 inch Barrel Diameter; a 2 inch to 1.25 inch adapter is included; allows the use of both 2 inch and 1.25 inch eyepieces
Astromania SWA 70 Degree Eyepieces with ED Optics: Astromania eyepieces provide a high contrast image at all times the built-in ED element making this possible; the 70 degree wide angle optics mean you always enjoy a huge field of view
ED Element High-contrast Optics: The first time you observe an object through one of these eyepieces; you will almost certainly be struck by the brilliance clarity and depth of colour in the image