Serlium Binoculars 8x21 for Adults, Pocket Binoculars Folding HD Optical Compact Binoculars for Bird Watching Concert Theater Opera

Specification: Item Type: Pocket Binoculars Material: Rubber, Optical Glass Magnification: 8X Objective Lens Diameter: Approx. 21mm/0.8in Eyepiece Diameter: Approx. 16.5mm/0.6in Single Sided Eyepiece: 2 Groups Of 3 Pieces Single Sided Objective Lens: 1 Group Of 2 Pieces Prism: Roof BK7 Coating: FMC Optical System: Pure Optical System Field Of View: 6.5 Degree Line Field Of View: 126m At 1000 M, 378ft At 1000yds Pupil Distance: Approx. 9.5mm/0.4in Pupil Diameter: Approx. 2.6mm/0.1in Nearest Distance: Approx. 2m/6.6ft Pupil Distance: Approx. 36-74mm / 1.4-2.9in Product Weight: Approx. 230g/8.1oz Product Expansion Size: Approx. 115x36x97mm / 4.5x1.4x3.8in Package List: 1 x Pocket Binoculars 1 x Carrying Strap 1 x Cleaning Cloth 1 x Storage Bag Note: Please allow some error due to manual measurement.