decotacks Crystal Upholstery Nails, Furniture Tacks 7/16" - 100 Pcs DXC0611#2_100 Head Size : 7/16" (11mm) *** Shank Length : 5/8" (16mm) *** 100 PCS/Pack They are very beautiful and looks like jewels on your furniture Made by high grade Acrylic Diamonds with nickel electroplated base and shank Mechanical Connection between Base & Diamond, No Glue Used!!! Requires proper tools like Needle nose pliers and soft face hammers to install them. Steel hammers may damage diamonds. Not&nbsp;using pliers will cause bending. So please&nbsp;don't use your fingers to hold them while hammering.&nbsp;