1 Prevent moisture, dust and debris from entering ,making your view brighter and clearer. 2 Provide clear images in any weather and any environment. 3 Ergonomic design helps you focusing quickly and accurately with one hand. 4 The dynamic lens focusing system makes it easy to zoom in on the target, perfect for watching wildlife, landscapes and even astronomy. 5 Easy to travel. It's easy to carry, so you can put it in your pocket or backpack.Item Type:Monocular Type:12x50 Monocular Magnification:12 Times Objective Lens Diameter: 50mm / 1.97in Eyepiece Diameter: 18mm / 0.71in Net Weight: 358 g / 12.63 oz(approx.) Gross Weight: 450 g / 15.87 oz(approx.) Product Size :180 x 76 x 65mm / 7.09 x 2.99 x 2.56in Eyepiece Coating FMC Multilayer Blue Green Film Objective Lens Coating FMC Multilayer Green Film Prism Material BAK4 Waterproof Grade:Daily Water-Proof .w-e-text table td, .w-e-text table th{border: .5pt solid000;};.w-e-text table{border: 1px solid000important;}1 x Monocular1 x Cloth Bag1 x Glass Cloth1 x Users Manual(English)1 x Sling