With Floatmaster 10x30 binoculars, from renowned optics company BARSKA, you never have to worry about losing your gear in the drink. Should your binoculars take an unexpected spill overboard (or from the shore), they're buoyant and are easily retrieved. Compact, lightweight, and practically indestructible, they're ideal for family vacations, sporting events, and any number of outdoor activities. Their performance is not limited to the water's surface, as well, offering a feature set that includes fully coated optics for maximum light transmission, a rugged textured nonslip grip, roof prism with BK-7 glass, and easy-to-use center focus system.