Helios 10x25 Nitrosport waterproof monocular. This high quality waterproof monoculars is small enough to have with you, whatever the weather. Extremely comfortable to hold, they have been designed to fit snugly into the palm of your hand. It has a magnification of 10, object lens diameter of 25mm and field of view 6.5º. This monocular is supplied with wrist strap and case.