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 25mm Thread pitch: M28.5*0.6 (for standard 1.25 inches filters) Barlow Lens: 100% Brand New and Never Used Doubles the magnification of any inserted 1.25 inch eyepiece A prime focus T-adapter for attaching a DSLR camera. A tele-extender for increasing the focal length of the telescope when attaching a DSLR camera With the T2 threads M42x0.75, you can attach a T-ring for astronomy photography Barrel Size: 1.25" Magnification Factor: 2X Lens Material: Pure Optical Glass Lens Lens Coating: Multilayer HD Broadband Green Film Sleeve Material: Metal Thread: M42*0.75 Pitch Total Height: 75mm Color: Black Total Weight: Approx. 400g Package List: 1 * Plossl 4mm Eyepiece 1 * Plossl 10mm Eyepiece 1 * Plossl 25mm Eyepiece 1 * 2X Barlow Lens Telescope 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.