The RD Series is a 10x42mm binocular with a contemporary open bridge design. These binoculars boast high quality BAK-4 prisms and fully multi-coated optics to ensure a crisp, bright image. A durable, waterproof design ensures a clear view. Its open bridge design makes it an ideal companion for concerts, sporting events, hiking and any outdoor activity. Store in its hard protective case when not in use.