1,Superior Performance: The 9mm focal length telescope eyepiece offers a wide field of view and exceptional performance. The internal blackening of the 1.25 inch eyepiece barrel eliminates light scattering, ensuring optimal image clarity and reducing aberrations. 2,Multilayer Coating: With its fully multi coated broadband coatings and excellent optical glass, this eyepiece delivers clear images with excellent color correction and contrast. It provides maximum brightness and high definition for an immersive viewing experience. 3,68 Degree Wide Angle: Featuring a 68 degree wide‑angle field of view, this eyepiece offers long eye relief and is ideal for observing celestial objects, especially large area deep space targets. It provides high light transmission and optimal image quality. 4,Versatile Usage: Designed for both astronomical and terrestrial observations, this eyepiece is compatible with all telescopes featuring a 1.25 inch interface. It is perfect for observing the lunar surface, planets, nebulae, star clusters, and diffuse nebulae. Its high brightness and large field of view ensure a comfortable and detailed observation experience. 5,Easy Installation: This eyepiece is a standard 1.25 inch telescope eyepiece that can be easily connected to most telescopes. The threaded interface supports the attachment of 1.25‑inch filters. It comes with sturdy plastic cover to protect the eyepiece from dust and moisture. Item Type: Telescope Eyepiece Material: Aluminum alloy, optical glass Weight: Approx. 132g or 4.7oz Focal Length: 9mm Angle: 68 degree Product Size: Approx. 77x31.7mm or 3.0x1.2in 2 x Dust Cover 1 x Telescope 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.