DURABLE MATERIAL: The press studs are made of brass, making them corrosion resistant and durable for the long term. CREATIVE USE: These press studs are perfect for leather crafts, anoraks, jackets, refined leather, handbags, clothing and other sewing projects. They can also be used creatively in baby clothes and bibs EASY TO USE: The snaps are easy and convenient to use. They can be corrected by hitting a simple central punching tool with a mallet SNAP FIXING SETS: These snap buttons have 4 pieces in each set, which includes 1 shoulder ring, 1 socket, 1 pair button and 1 bead cap. Nail Press: These Nickel Free, Snap Buttons, Size 9.5mm (Approx.