The Svbony fully metal 1.25" Mirrors Diagonal zenith mirror offers an upright figure which is but turned backward in left and right position. It is suitable in particular for astronomical observations. The mirror depicts clean and full of contrasts. The mirror is suitable for refractors. It is not suitable due to the length reflectors for Newton. The SVBONY super 1.25" 40 mm plossl eyepiece engineered with 4 element design and offers a generous 40 degree 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. The built in rubber eye guard enhances viewing by helping to block out ambient light and position no introduction of additional color for higher magnification; highly achromatic;enhance the details of planetary filters. Lens edges are blackened to reduce scattering of stray light and maximize contrast; the lenses are mounted in black anodized aluminum housings with a 1.25" diameter barrel for durability and precision fit. High magnification for eyepieces to see more details of the moon;bands of Jupiter clearly;SVBONY 1.25" 2x Barlow lens is a better choice It's easy to use;simply insert the eyepiece into Barlow lens;then insert the Barlow lens into the scope The Barlow lens also could provide more magnification without reducing the exit hole on the eyepiece;it keeps a comfortable observation with wide view