Hunter class lenses are all multicoated to ensure maximum utilization of all ambient lights to optimize resolution and clarityHorseshoe reticle for most optimal aiming and shooting performance100% shockproof waterproof and fogproofLimited lifetime warrantyMagnification: 1.00X - 4XTube Diameter: 30mmObjective Diameter: 28mmField of View @ 100 yards: 85.0" - 24.0"Eye Relief: 5.0" - 4.0"Exit Pupil: 11.0mm - 6.0mmClick Value @100 yards: 1/2"Length: 254mmWeight: 14.3 ozParallax Setting: 100 YdsBatteries: CR2032 3V