A monocular with 10x magnification and a 25mm objective lens diameter. Small and handy, it collects 12.5 times more light than the unassisted eye and so is a genuine all-rounder under daylight conditions.The prisms are made from high-performance BaK4 glass and the tube from light and robust polycarbonate. It is waterproof and nitrogen-filled, so there is never a problem with internal fogging. The screw-out metal eyecup means that it is also suitable for spectacle wearers. All glass/air surfaces are multi-coated. It is rubber-armoured and shock-proof and has particularly long eye relief.Useful for walking, nature watching, sports events, open air concerts and much more besides, and is really lightweight at only 162 grams.