Feature: 1. Made of metal, high strength and non-deformation, super smooth surface finishing. 2. The adapter ring is suitable for 0.965inch/24.5mm T mount astronomical telescope eyepiece to mount for M42 thread. 3. Universal M42 thread interface, compatible for most of astronomical telescope. 4. Precise thread ensures firm connection, hard to loosen. 5. Lightweight and portable, useful accessory for photography lovers. Specification: @font-face{ font-family:"Times New Roman"; } @font-face{ font-family:"宋体"; } @font-face{ font-family:"Calibri"; } p.MsoNormal{ mso-style-name:正文; mso-style-parent:""; margin:0pt; margin-bottom:.0001pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; font-family:Calibri; mso-fareast-font-family:宋体; mso-bidi-font-family:'Times New Roman'; font-size:10.5000pt; mso-font-kerning:1.0000pt; } span.msoIns{ mso-style-name:""; text-decoration:underline; text-underline:single; color:blue; } span.msoDel{ mso-style-name:""; text-decoration:line-through; color:red; } @page{mso-page-border-surround-header:no; mso-page-border-surround-footer:no;}@page Section0{ } div.Section0{page:Section0;}Item type: Telescope Eyepiece Adapter RingCondition: 100% brand newMaterial: metalColor: black The adapter ring is suitable for 0.965inch/24.5mm T mount astronomical telescope eyepiece to mount for M42 thread. Package List: 1 x Telescope Eyepiece Adapter Ring