1、SCT THREAD: Suitable for Schmidt Cassegrain telescopes, such as for Celestron C8 C925 C11 C14 C8HD C925HD C11HD C14HD, the connection is tight and stable. 2、WIDE APPLICATION: 2in interface to SCT thread adapter, side clamping screw design, suitable for 2in eyepiece or camera with 2in connector. 3、SECURE CONNECTION: Locking screws and compression rings ensure that your valuable accessories are attached gently and securely, protecting them from damage. 4、ADJUSTABLE: No electrical contacts, exposure and focus must be adjusted manually. The lens mount is adjustable to prevent the lens from being upside down. 5、ANODIZING: Made of high quality aluminum alloy material, durable and rustproof, wear resistant. The exterior is glossy black anodized with grooves on the inside for maximum contrast. 1 x SCT Eyepiece Adapter Item Type: SCT Eyepiece AdapterMaterial: Aluminum AlloyWeight: Approx. 95g / 3.4ozColor: Glossy BlackInterface Specification: 2in ( 50.8mm)Thread Specification: SCT Thread (2in-24teeth)