Feature: 1. USAGE: 2 inch to 1.25 inch telescope eyepiece adapter is used for telescope, it can connect 1.25 inch eyepiece with any 2 inch telescope focuser, star diagonalizer or mirror mount. 2. EASY TO FIX: The 2 inch to 1.25 inch telescope adapter ring comes with a clamping screw, just one wrest and the accessory can be firmly clamped in place and gently clamped over a wide area. 3. APPLICATION SCENARIO: 2 inch to 1.25 inch telescope adapter is used for 2 inch telescope to 1.25 inch to connect DSLR photography or eyepiece use, perfect for lunar and planetary observations in larger telescopes. 4. FINE WORKMANSHIP: Superior anodized aluminum alloy adapter ring with enhanced rust and erosion resistance, with internal threads for easy fixing and tightening. 5. BRASS PROTECTOR RING: 2 inch to 1.25 inch telescope eyepiece adapter comes with a brass protector ring to prevent the eyepiece from being scratched and guard it for extended use. Specification: Item Type: 2 Inch to 1.25 Inch Telescope Eyepiece Adapter Material: Aluminum Alloy, Brass Connector Size: 1.25 Inches (31.7mm) Bore Joint Size: 2 Inches (50.8mm) Outer Diameter Flange Pitch: Approx. 10mm/0.39in Thread Size: M48x0.75mm Color: Black. Package List: 1 x 2 Inch to 1.25 Inch Telescope Eyepiece Adapter