Packaging size: 2150g 53 * 24 * 21cm Features: The 1.25inch eyepiece interface design can replace the standard 1.25inch astronomical eyepiece and WIFI bird watching camera, meeting the needs of visual and scene users. It has a streamlined appearance, a more fashionable appearance, and a builtin spiral focusing wheel for quick and precise adjustment. Fully Multiple coating can increase light transmittance and protect the lens from oil stains, scratches, and dirt. Rubber armor enhances users' durability and grip strength. The adjustable eye mask can rotate up and down, allowing for comfortable viewing with or without glasses. The builtin sunshade can reduce glare and protect the objective lens from raindrops and snow. The bird watching mirror can be installed on a tripod or car window bracket, with 1/4-20 threads on the tripod head.   Specifications: Model SA405 Objective lens diameter 85mm Magnification factor 20-60X Prism type: Prol prism Armor material rubber Coating conditions: Full multilayer coating Eyepiece diameter 28mm Eyepiece glass group 10 pieces/7 groups Eye distance 19.5-18mm Exit pupil 41.35mm Field of view (angle) 1.92-0.93 ° view 102-48ft@1000yds Close focal length 12m Waterproof IPX6 Color Army Green Net weight 2020g Product size 430x103x173 Package details: SVBONY SA405 20-60x85 HD Bird Watching Mirror Portable Soft Bag Lens cleaning cloth Lens cover (for objective and eyepiece) User manual