Barska CO10673 10X50 X-Trail Porro Binoculars. Quality binoculars with a magnification of 10 power and objective lens of 50 mm (millimeter). WA (wide angle), provides a wider field of view. Multi coated optics with porro prism. Rubber armoring to protect against shock and the elements. Center-focusing and fold-down rubber eyecups to accommodate eyeglass wearers. Precise porro prism system will provide high contrast and bright, clear images. Carrying case and neck strap included. A very good use for general bird watching, hunting, sports, auto racing, and opera. Ruby lens coating.