PREMIUM MATERIAL: Crafted from solid copper with gold plating for a luxurious finish, these brass barrel hinges offer superior durability and corrosion resistance for long-lasting performance in your woodworking projects CONCEALED DESIGN: Invisible barrel hinge construction provides a seamless, hidden appearance when installed, perfect for jewellery boxes, small wooden chests, and craft projects where aesthetics matter TWO SIZE OPTIONS: Available in 10mm (10 x 22mm) and 12mm (12 x 27mm) diameter sizes to accommodate various project requirements, with each set supporting up to 8kg maximum load capacity per 2 pieces EXCEPTIONAL LONGEVITY: Engineered for smooth operation with a lifespan of up to 50,000 open and close cycles, ensuring reliable performance for frequently accessed boxes and compartments COMPLETE SET: Package includes 4 brass barrel hinges, providing sufficient hardware for two small boxes or one larger project, ideal for DIY enthusiasts and professional woodworkers alike, Manufacturer: HEEPDD