RYA1017 Features: * Binoculars * High transmission * Fogging resistant * Fully multi-coated lenses * Minimal reflection * Twist-up eyecups * ED Glass * FMC Coating * Roof model * Magnification: 10x * Bak-4 prism * Field of view: 113m/1000m * Lens diameter: 42 * Eye relief: 17.2 Dimensions: * Overall dimensions: 8" H x 8" W x 8" D