Upholstery Tacks Head Size : 7/16\ (11mm),Shank Length : 5/8\ (17mm). Package includes: 100 pieces of silver finish upholstery nails/ tails, plenty number of nails can meet your basic needs for pinning stuffs and so on. Wide application: these decorative upholstery tacks can be applied on sofa, wood, walls as decorations or you can fix your paintings, photos and other stuffs with them. Made by Steel with high grade electroplating with Matt silver Finish. Need to use Pliers to catch nails before hammering, they are small and hammer them by free hand may be dangerous and cause shanks bending !!!