- Pack of 80 flat metal key rings in 4 sizes: 15mm, 20mm, 25mm, and 30mm (20 units per size) - Made of sturdy nickel-plated metal, with a smooth surface and silver shine - Double-layer design ensures secure closure and prevents loss of items - Resistant to deformation, rust, and discoloration, suitable for humid environments - Easy to open and close, allowing you to attach and remove items quickly - Versatile: ideal for organizing keys, making crafts, pendants, accessories, decorations, and gifts - Suitable for daily use at home, office, car, and DIY projects - Complete specifications to suit multiple applications and needs