German Precision Optics (GPO) has a lightweight magnesium body binocular that is built to the highest standards for their price range for the best in resolution and color. They also feature a lifetime warranty that will let them stay in your family for generations. From the range to the field or in the stands see with clarity and color form GPOFeatures:lightweight magnesium body;They also feature a lifetime warranty that will let them stay in your family for generations