Description: Webcam adapter for telescope 1.25" thread: male 12mm. Standard 1.25" telescope eyepiece port. Adapter with built-in filter thread. The interface to camera is M12*0.5(male thread). Webcam interface standard 1.25 inches consider filter interfaces. Specification: Webcam Transfer Interface:1.25 inches (31.7mm) The Interface to Camera Thread:M12*0.5(Male Thread) Material:Aluminum Alloy Size:30*30*40mm Color:Black Package Includes: 1 Piece Webcam Adapter