This four-piece 1.25 inch astronomy accessory kit let you get the most out and enhances the performance of your telescope, it contains 4mm/10mm/ 25mm Plossl eyepiece, a 2x Barlow lens w/ T adapter.Plossl Eyepiece Set:Multi coated offering the best image.Full metal, soft rubber eyeguard.The inside of the adapter is fully threaded to minimize reflections.Comes with 3 eyepieces that provide low, medium and high powered magnification for viewing a wide range of objects. (Moon, planets, or land)The focal length: 4mm 10mm 25mmThread pitch: M28.5*0.6 (for standard 1.25 inches filters)Barlow Lens:100% New and Never UsedDoubles the magnification of any inserted 1.25 inch eyepieceA prime focus T-adapter for attaching a DSLR camera.A tele-extender for increasing the focal length of the telescope when attaching a DSLR cameraWith the T2 threads M42x0.75, you can attach a T-ring for astronomy photographyBarrel Size: 1.25"Magnification Factor: 2XLens Material: Pure Optical Glass LensLens Coating: Multilayer HD Broadband Green FilmSleeve Material: MetalThread: M42*0.75 PitchTotal Height: 75mmColor: BlackTotal Weight: Approx. 400gPackage List:1 * Plossl 4mm Eyepiece1 * Plossl 10mm Eyepiece1 * Plossl 25mm Eyepiece1 * 2X Barlow LensTelescope in the picture is prop..Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.