Features: Standard 1.25in diameter fits for 1.25in eyepiece and telescope focuser. Designed for refractor and catadioptric telescopes, and not for reflector telescope. Wide 90 degree angle allows you to view inverted image from refractor telescope stand and just look down with a comfortable angle. Easy to install and use. Just insert into 1.25in telescope at the silver end,the other end fix 1.25in eyepiece by the screw. The body is constructed of high quality materials, sturdy and not easy to damage. Specification: Condition: 100% Brand New Material: Metal + Plastic Color: Black + Silver Interface: 1.25in Weight: Approx. 110g Packing List: 1 x Zenith Mirror Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.