decotacks 7/16" Crystal Upholstery Sofa Nails, Tacks, Smoke Color [100 Pcs] DXC0611#27 Head Diameter : 7/16" [11 mm], Shank Length : 5/8" [16 mm] Never get scratched by soft face hammers Made by top grade materials, bright, Shiny and Beautiful Smoke Color [Transparent Dark Gray] Diamonds, 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 !!!