Specifications: Material: Metal + optical glass Color: black Thread: M42*0.75 thread interface Amplification coefficient: 3X Interface: 1.25inch/31.7mm Height: Approx. 65mm/2.6in Packing List: 1*3X Barlow Lens

AFTER SALE:We have professionals responsible for after sales. Therefore, if you have any questions, please contact us and we will provide you with the best service. SIMPLE OPERATION:It is easy to use, place the eyepiece of choice in the barlow lens then insert the barlow lens into the frame. Help astronomy enthusiasts better perform astronomical observations. MORE MAGNIFICATION:The barlow lens also could offer more magnification without reducing the exit hole on the eyepiece. High transmittance to achive clear and sharp views. 3X BARLOW LENS:1.25 inch 3x Barlow lens, fully multi coated metal with M42x0.75mm thread camera connect interface for telescope eyepieces. High quality barlow lens 3x gives a big magnification boost to 1.25 inch eyepiece. METAL SHELL:The shell was made of quality metal, anti deformation, anti rust, sturdy and durable. Superior sharpness and color correction, real physical computing magnification.

Manufacturer: Oumij. Date First Available: September 11, 2019. Best Sellers Rank: #11 in Telescope Barlow Lenses. Customer Reviews: 4.6 out of 5 stars 18 ratings 4.6 out of 5 stars. : B07XRCND5L. Item Weight: 3.17 ounces. Product Dimensions: 1.26 x 1.26 x 2.48 inches.