This Solid Made Binoculars Can Be Used As Opera Or Field Glasses. Focusing Is Accomplished With A Single Center Adjustment. These Are Crafted From Polished Solid High Quality Material And Precision Ground Glass Lenses. Since These Binoculars Do Not Have Prisms, They Have A Smaller Field Of View As Compared To Modern Binoculars. The Small Binoculars Measure 2 5/8 Inches (6.7 Cm) To 3 1/2 Inches (8.9 Cm) In Length Depending On Focus, And Are 3 5/8 Inches (9.2 Cm) Wide. It Feature Quality 2.5x Power Optics With 25 Mm Objective Lenses. The Small Binoculars Come Complete With A Real Leather Neck Strap, We Also Offer Several High-Quality Optics And Glasses For More Nautical Needs Keep Exploring Nagina International For More Impressive Kitchen Home Decor Gifts & Collectibles.