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. This makes features like craters, mountains, and maria more distinct and easier to observe. Telescope accessory kits offer a variety of different combinations to suit different types of observations. Whether observing planets, the moon or deep space objects. Three eyepiece sets; 4mm 10mm 23mm telescope eyepiece; for intricate details on bright objects; like the moon and Jupiter; also meets the needs of observing deep space targets such as medium sized star clusters and nebulae. Wide angle 62° eyepiece; provide a wider apparent field of view; easier to locate objects and appreciate their surroundings; gives you an immersive viewing experience; suitable for scanning the starry sky or observing extended objects such as nebulae.