Description: * Decorative nail heads, also called upholstery tacks, are used to fasten upholstery material to furniture or directly used into leather sofa.* Suitable for hanging or holding down charts, banners, calendars and so on. Widely used for DIY home decoration, office, and restaurant, etc.* Please do not use any chemicals to clean nail heads, please just clean them with dry piece of cloth. Specification: * Material: Iron* Color: Bronze Tone* Head Diameter: 16mm (+/-0.2mm) / 0.64-inch* Head Thickness: 1.4mm (+/-0.2mm) / 0.06-inch* Total Length: 20mm (+/-0.5mm) / 0.78-inch Package Content: * 20pcs x Upholstery Nail Tacks.