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. SV179 Red Dot Reflex Viewfinder Finder Scope is an easy upgrade to the optical finders that are usually found on 4.5" and 6" reflectors and many refractors as it is a straight replacement, using the same two protruding studs. The holes on the base of the finder are slotted so that they will fit from 11mm to 30.3mm across. Finder Scope for Astronomical Telescope Red Dot Reflex Viewfinder Finder Scope is an easy upgrade to the optical finders that are usually found on 4.5" and 6" reflectors and many refractors as it is a straight replacement, using the same two protruding studs. The holes on the base of the finder are slotted so that they will fit from 21mm to 26mm across. Main be fit for Celestron 80EQ SE SLT PS Series and Meade Infinity and Polaris and so on Series Astronomical Telescope (Note: Meade Infinity Series:80AZ 90AZ 102AZ and Polaris Series: 80EQ 90EQ not applicable)