[Features]: Total Height: 20mm / 0.8inch; Head Diameter: 16mm / 0.63inch[Applications]: Bedside backboard decoration，Sofa table and chair decoration， Background wall decoration，Craft reinforcement and decoration，Reinforcement and decoration of musical instruments such as drums.[Mounting]：Use rubber hammer and needle-nose pliers to assist in fixing.[Note]：To protect your hands, it is recommended not to hold the nail directly with your hands. Do not use hammers that are too large and heavy. You'd better use needle nose pliers and rubber hammer.[Convenient]: Uxcell offer you different style, different colors and different size of upholstery nail tacks for you to choose. It is easy to find what you need and the item is easy to use.Used on a message board, desk cork board or wall-mounted maps. Easy and quick to install as you expected.