Fully Multi-Coated and BaK-4 Prism Maximize Light Transmittance, Delivering Bright and Clear ImagesHeavy-Duty MagAlu Alloy Offers High Strength, Rugged Durability, Effectively Resisting Shock and Drops50mm Large Objective Lens Enhances Light Gathering Capabilities, Ensuring Visibility in Dim ConditionsDurable Rubber-Armored Housing Provides a Non-slip and Comfortable Grip, Even in Wet Conditions12x Magnification Ideal for Observing Fine Details at Long Distances, Perfect for Birdwatching and Hunting