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: Brass Tone, Black* Head Diameter: 9.5mm (+/-0.5mm) / 0.37-inch* Head Height: 3mm (+/-0.5mm) / 0.12-inch* Total Length: 17mm (+/-1mm) / 0.68-inch Package Content: * 50(+/-2%)pcs x Upholstery Nail Tacks.