Product Description material: metal size: 12mm Color: brass Quantity: 4 pieces Package content: 4*a hidden hinge 1.High-quality materials: This hinge is made of heavy-duty copper, does not rust, and is sturdy and durable. And it can be used for a long time. 2.Easy to install: The hidden hinge of the cabinet is simple to use and easy to install. This product contains 4 hinges. 3.Easy to use: These invisible hinges are very convenient to use and install. The opening angle and unique design ensure a better operating experience. 4.Application range: This hinge can be used for wooden doors, cabinet doors, light RV countertops or tables, and many DIY projects. 5.Ideal gift: You can use these barrel hinges to make your own box, as an ideal gift to your friends and family. Due to the camera angle, the color may be different from the actual product, and there is a color difference, please refer to the actual product. Thanks for understanding.