Description: - 1.25 inch 40mm low power plossl eyepiece, gives the widest viewing field along with extra sharpness and long eye . - 4-element plossl design, has a approx 52 degree AFOV. The optical lens minimizes internal reflection and maximizes contrast. - The blackened eyepiece barrel also prevents reflection. - Standand 1.25inch size, fits all stand telescope brands.Threaded for 1.25inch astronomical filters. - Soft rubber eye guard that's custom fitted with a bayonet mount and brings convenience to glasses wearers. Specification: - Barrel Size: 1.25 inch (31.7mm) - The Focal Length: 40mm Plossl eyepiece - Threaded for filters and Barlow lens: 1.25-inch - Net Weight: 142g/5oz - Height (Total): 94mm/3.7inch Package Includes: 1 Piece 40mm Plossl Eyepiece Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.