The Whitby Gear 8x21 Compact Binoculars deliver superior light transmission and brightness for superb long-distance magnification, ideal for watching sport, bird watching or sightseeing. The WG821 uses patented Porro prisms for images that are crisp and clear, while the centrally positioned focus knob provides quick and easy adjustment using just one finger. The rugged design features a non-slip body, ensuring a secure grip. Comes with an integrated cord neck strap and a small carry case. Available in Black 10 x 7 x 4 cm compact and portable 165g – very lightweight 8 x magnification, 21mm objective lens diameter. Porro Prisms give crisp, clear images Multi-coated optics great for long distance magnification No nonsense and secure grip compact binos.