With the special Fast Focus feature, you and your students can fine tune an image in one-fifth the time it takes to focus with standard binocular models. For long-distance viewing, the binoculars feature increased magnification that brings distant objects up close. The convenient Fast Focus feature combined with the very reasonable price makes these binoculars perfect for students. Binoculars provide a field of view up to 341' at 1,000 yards. Additional features include an easy grip surface, fully coated optics, comfortable rubber eyecups, black vinyl carrying case, shoulder strap, and instructions in both English and Spanish. Size: 15.2cm L x 17.8cm W x 5cm H; weight: 1 lb, 9 oz.