Specifications:Color: SilverDiameter: 17mmMaterial: Zinc AlloyPackage includes: 12Pcs Jean Button PinsFeatures:Instant reduce pants waist.No sewing required, no tool required.A excellent replacements for missing button.Perfect for jeans, skirt, shorts, pants, suits, jackets, sweaters, belts, backpacks, etc.Made of zinc alloy and adopts a double-sided plating process, sturdy and durable for a long time.Buttons unique card slot design, won't fall off when stuck. With a built-in spring structure, the button is detachable.How to use:Detach the tack. Pull the bottom round disc to the loosest, and separate the tack and base.Thread the button pins tack through the fabric, and snap the button pins tack to the bace.