1.25 inch 90 Degree Diagonal Mirror, Fully Coated Lens with Dust Cover 90 Degree Diagonal Adapter for 1.25 Inch Eyepiece, 0.965 Inch Telescope Focuser - Tangxi, Tangxig68kfvo4y5

• APPLICATION: This mirror is suitable for 1.25 inch eyepieces and 0.965 inch telescope focusers. Designed for refracting telescopes, not for reflecting telescopes. 90 DEGREE ANGLE: This 90 degree diagonal mirror works with refracting telescopes to hold the image upright, albeit upside down from side to side, without interfering with astronomical observations. FULLY COATED LENS: lenses are equipped with fully coated lenses with a dust cover to keep the lenses clean and make viewing images clearer. EASY INSTALLATION: This mirror is easy to install and use. Simply insert one end into the 0.965 inch telescope and screw the other end to fix the 1.25 inch eyepiece. MULTIFUNCTIONAL APPLICATION: This diagonal mirror is perfect for celestial observation and can also be used for terrestrial observation. By using the mirror, users can easily observe the sky or the ground.