This SVBONY seven-piece accessory kit enhances the performance of your telescope. Includes two 1.25" Plossl eyepieces, a 2xBarlow lens that can be used visually or photographically, three eyepiece filters and a Portable bag. Plossl 6mm eyepiece ideal for observing details on planets, the Moon, and other celestial objects. Plossl 17mm eyepiece is suitable for observing a variety of celestial objects, including star clusters, galaxies, nebulae, and even some planetary details. 2X Barlow scope provides 2X magnification for visual observation and astrophotography, magnifying more details of planets, the moon and other celestial bodies, thus enhancing the observation experience. 82A light blue filter. Planetary Observations: Especially beneficial when viewing planets like Saturn or Jupiter, where it aids in highlighting banding and storms. Lunar Observations:Enhances the details of craters and maria on the Moon's surface, providing a clearer view during observations. Moon filter. By decreasing brightness, moon filters improve the contrast between the illuminated and shadowed areas on the Moon's surface. SVBONY 40mm Plossl eyepiece is engineered with 4 element design and offering a generous 40° apparent field of view; perfect for broad field lunar observations; medium sized star clusters; provide a wide range of cloudy nebulas and deep sky targets. Soft rubber eye guard that is custom fitted with a bayonet mount and folds down for the convenience of eyeglass wearers and protects glasses from getting scratched. SVBONY SV188P Dielectric Mirror Star Diagonal, 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings. Dielectric coatings; super flat mirror with dielectric coatings to reduce reflected light loss; provide an over 99% reflective surface; good for astronomical viewing.