This is a vintage folding brass binoculars, perfect for anyone who loves antiques or marine/maritime items. The primary material of these binoculars is brass, giving them a unique and stylish look. They are ideal for use at sea or on land, and are sure to impress anyone who sees them. These binoculars are classified under the categories of Antiques and Marine/Maritime, making them a must-have for collectors of these types of items.