New Zenith Mirror 90-degree  mirror diagonal 31.7mm for 1.25Ó Eyepiece
 
For astronomical use, this diagonal produces an image that's right-side-up, reversed left to right Fully coated prisms for superior image fidelity Accepts 1.25" telescope eyepieces Makes it easier to navigate the night skies with a telescope Useful for refractor and Cassegrain telescopes - not recommended for reflectors 
 
Specification:
 Brand new and high quality Body 
material: Plastic and Metal Adapter
 telescope: Refractor telescopes 
Adapter eyepiece: 1.25" 
Refraction angle: 90-Degree 
Lens: Glass 
Net Weight: 109g