Features:Barlow Lens 2X telescope eyepiece 1.25" Interface M42x0.75mm thread + 6.3mm/10mm/12.5mm/20mm/32mm Plossl telescope medium power eyepiece set.1.25 Inch Interface:universal for Celestron, Nikon, Orion and other telescopes.2X High Power Magnification:more detailed at the star, moon and other celestial bodies.With M42x0.75mm thread to connect digital camera via T ring adapter.With 1.25- inch 6.3mm/10mm/12.5mm/20mm/32mm plossl eyepiece set, gives the widest viewing field along with extra sharpness and long eye relief.Specification:2X Barlow Lens Info:- Material:Optical Glass+Metal- Magnification Factor:2X- Lens Coating:Multilayer HD Broadband Purple Film- Thread:M42x0.75mm- Size:40*77mmPlossl Eyepiece Info:- Focal Length: 6.3mm/10mm/12.5mm/20mm/32mm- Threaded for Filters and Barlow Lens : 1.25 inch (31.7mm)- The Structure of the Optical System: Plossl Eyepiece- Coating: Fully Multi-coated- Eyepiece Size :(6.3mm) 35*37mm / (10mm) 35*37mm / (12.5mm) 35*42mm / (20mm) 35*52mm / (32mm) 40*73mmPackage List:1 Piece 2x Barlow Lens1 Piece 6.3mm Plossl Eyepiece1 Piece 10mm Plossl Eyepiece1 Piece 12.5mm Plossl Eyepiece1 Piece 20mm Plossl Eyepiece1 Piece 32mm Plossl EyepieceTelescope in the picture is prop.