Magnification:10-60 times Objective Lens Diameter:60mm Eyepiece diameter:15mm Field of View:57m/1000m Origin:Mainland China Type:Monocular Prism BAK4 Lens Coating FMC Focus Type:Central+Detached Specifications Model10-380X100 MaterialRubber Prism material:Bak4 Size24*20*7.5cm Instructions 1. Lifetime waterproof, prolong service life. 2. BAK4 prism, the image is clear and the picture is bright. 3. The big eyepiece is more comfortable and not dizzy. 4. FMC multilayer coating. It helps to see more vivid colors and more details. Package Listing 1 * Binocular 1 * Lens Cleaning Cloth 1 * Storage Pouch 1 * Lanyard 1 * Cap 1 * User Manual (English) 1 * Packing Box Free Gift Collection and plus purchase to send Sleeve which are used for decoration, sun protection, riding arm guards, and reducing wind resistance during high-speed riding.