This new generation monocular telescope is a good tool for nature lovers. The Lens of it adopt BAK4 prism type, that makes the lens more transparent, clear and bright. The dust cover design on both eyepiece and objective lens, can help to prevent the dust from entering. The wrist type anti skid rope design will be more easy to carry and prevent to fall off when holding. With pocket design, this will help you probable to take and single hand operation. It has broad green film and double -side broadband coating, that makes the average transmittance of more than 99.5% in the spectral range of 400 to 600nm.Features:1. Lens adopt BAK4 prism type, that makes the lens more transparent, clear and bright. 2. Dust cover design on both eyepiece and objective lens, can help to prevent the dust from entering.3. The wrist type anti skid rope design will be more easy to carry and prevent to fall off when holding.4. With pocket design, this will help you probable to take and single hand operation.5. The broad green film and double -side broadband coating, that makes the average transmittance of more than 99.5% in the spectral range of 400 to 600nm.6. The focus capability makes the image clear and sharp.Specifications:Model: 40 x 60Material: All-metal(inner)+ Rubber(outer)Objective Lens Diameter: 50mm / 1.96inchEye Lens Diameter: 20mm / 0.78inchLens Coating: FMC Green FilmFocus Mode: Fixed Focus Double TonePrism Material: BAK4Prism System: Ridge SystemColor: BlackDimension: Approx. 160 x 50mm / 6.3 x 1.96inchWeight: Approx. 302gPackage Included:1 x Monocular Telescope1 x Monocular Bag1 x Cleaning Cloth2 x Dust Cover1 x Hand RopePlease Note:1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please in kind prevail.3. Actual Magnification: 10 times.