SVBONY Telescope Eyepiece 1.25&rdquo; 6mm 66-deg Ultrawide Angle Multi-coated(Black) 66 degree ultra wide angle and long eye-relief: Provide more complete view and comfortable observation experience; suitable for viewing, view day use, especially for large area of deep sky objects, will provide the transmittance and high image quality. Focal length: 6mm; Provide high power magnification to allow you look more closely and more detailed at the moon's surface and other planet Coating: 6 chip optical lens, the whole coating (HD green film); Eyepiece interface thread specification: metric screw thread Size: The standard 1.25 inch telescope common eyepiece interface; Suitable for: the world of dual-use, suitable for astronomical telescope all (31.7mm interface) for the observation of celestial bodies, the surface of the moon, planets, nebulae, star clusters, diffuse nebula, high brightness, wide field of view, observation is very comfortable; full metal body, the whole surface of multilayer coating, excellent optical performance 30 days no reason return warranty: You can apply for return without any reason within 30 days,simple and convenient return process