This SVBONY SV233 12 piece accessory kit can enhance the performance of your telescope; It includes two high-quality 1.25”astronomical eyepieces; a high-performance 7-21mm zoom eyepiece; a 3.2mm 58° ultra-wide-angle planetarium eyepiece; a 2x Barlow lens for visual or photographic use; LRGB filters; a moon filter; a Variable Polarizer and a Oxford portable cloth bag. SVBONY SV233 12 Piece Telescope Accessory kit, the combination of eyepieces, Barlow lens and filters provides common observation matching solutions for astronomy enthusiasts and stargazers, bringing a clear and comfortable visual experience. 1.25in diagonal fits telescopes with 1.25in focusers. Accepts standard 1.25” eyepieces, filters, Barlow lenses and other accessories with a 1.25in insert barrel. 90° Viewing Angle. For more comfortable overhead viewing through refractor and Cassegrain type telescopes.