The Visual Kit includes SVBONY 68 Degree Eyepieces 6/9/15/20 mm, 1.25 inch Laser Collimator, 1.25 inch Moon UHC CLS UV/IR Cut Filters Combination, and SV137 2x Barlow 1.25Inch FMC Internal Brass Ring with Perfect Matting Treatment. 

• Fashion appearance;Different from the black that is common in the market;The silvery look makes the product look more stylish;The overall appearance is beautiful and upscale;
• Brass compression ring design; A brass compression ring can protect your eyepiece from marring or scratching the barrel; Keeping your eyepiece in new looking;
• Lens edges is blackened; The edge of the mirror is matted black; Reduce scattering of stray light and maximize contrast;
• Non-slip rubber grip ring design; No slip prevent the barlow lens from falling off accidentally; Rubber grip ring for secure handling even in moist conditions;
• Fully multi-coated lenses;The lens fully multi-coated provide a sharp view; Excellent optical performance with high contrast and high resolution.

• SV213 3x Barlow lens triples the magnification of all 1.25 inches astronomical eyepieces, and very suitable for various short focal length telescopes;
• All optical glass surfaces have multi-layer coating. The 3-element air space design can eliminate color difference, so that you can enjoy a clearer, sharper and more real vision;
• The housing is precision machined from aluminum stock and black anodized to a hard finish;
• The Barlow lens has a compression ring that doesn't leave any marks on cameras or eyepieces;
• The SV213 Barlow lens optical components are detachable, which is convenient for daily cleaning to keep the lens clean.

• The SV216 Barlow lens adopts a 4-piece telecentric design, which effectively prolongs the focal length of the primary mirror without introducing chromatic aberration and vignetting problems that bother users. Offers excellent spherical aberration control, resulting in a flatter field of view than standard Barlow lens;
• The magnification of the SV216 Barlow lens is constant at 2 times. the 4-piece design of the Barlow lens and the optimized optical structure ensure that the magnification factor of the Barlow lens remains unchanged no matter where the Barlow lens is installed in the optical system;
• SV216 2x Barlow lens adopts 3 screws design and coaxial locking device. Improving the concentricity of the optical axis of the system can significantly improve the quality of captured images;
• The 4 lenses of the SV216 Barlow lens are fully multi-layer enhanced coating, which makes the picture bright and sharp. The edges of the lens are blackened to eliminate internal light scatter to maximize image contrast;
• The low magnification eyepiece is matched with the SV216 telecentric 2x 4-element Barlow lens, which can enjoy the magnification effect of the high magnification eyepiece while the eye relief distance is still within the comfortable observation range of the human eye.

Svbony 1.25'' 2x barlow lens for astronomy telescope eyepiece, can effectively doubles the magnification of each eyepiece.

Svbony 1.25'' 2x barlow lens for standard 1.25'' telescopes, it has M42 thread, so it can connect with your camera, you just need an adapter, it's perfect!

• Powerful Telescope Accessories; SV118 1.25" 2x achromatic Barlow lens effectively doubles the magnification of each eyepiece;
• Fully Multi coated lens; SV118 barlow lens uses two element fully multi coated for excellent transmission and the internal housing is baffled to eliminate unwanted reflections and increase contrast;
• Compact barlow lens; SV118 barlow lens just 2.5 inches long; Easy to stash in your accessory case;
• Important role; The Barlow lens’ role is not only to improve the image quality; But also viewing comfortably;
• SV118 2X barlow lens provide a high power magnification allow you look more closely and more detailed at the moon's surface and other planet;It's a great gift for Halloween birthday christmas.

• Advanced Achromatic Lens;Superior sharpness and color correction;optical components;real physical computing magnification;triple the power of any 1.25" telescope eyepiece with the universal barlow lens;
• For owners of fast short focal length telescopes;It not only increases the magnification;the image will be clearer than the average increase in magnification up to 15 times the image clarity;
• 3x Barlow triples the magnification of any 1.25” eyepiece; Compatible with most 1.25 Inch diameter telescope eyepieces;
• Includes both end caps to protect against dust and fingerprints; This Barlow comes with a set screw to securely hold your eyepieces;
• Works on for Celestron; Orion;and most brands of telescope;full unit increases magnification of eyepiece by 3x.