S Spring Press Studs Colored Cap with Gunmetal Back Snaps for Handbags and Belts Specifications: Material: Metal Back Snaps Color: Gunmetal Black (Socket, Stud, Post) Caps: 15mm Outer Socket: 14mm Outer Stud: 11mm Post Diameter: 11mm Post Height: 7mm Quantity: 10 Sets, 50 Sets, 100 Sets Size for Dark Navy, Red, Dark Green, Royal Blue, Brown: Cap Height: 4.8mm Stem Height: 2.8mm Diameter: 3.3mm Size for other colors: Cap Height: 5.8mm Stem Height: 3.8mm Diameter: 2.9mm Snap fasteners, also known as press studs, are commonly used in tailoring and leather crafting. Made from metal, these snaps are strong, rust-resistant, and durable for everyday use. The double-action S-springs inside provide smooth opening and closing operation. These fasteners come with caps in various colors, allowing the cap color to be matched or contrasted with the fabric. S spring press studs are suitable for bags, purses, clutches, jackets, leather projects, and various DIY applications. This set includes four parts: Part A - Cap for fixing socket Part B - Socket (female part) Part C - Stud (male part) Part D - Post for fixing stud