Nailheads Spots Pyramid Studs 706 8-prong 5/16" (9mm) square; Brass with Bright Nickel Finish; 100 Pcs #706 100 pieces 9MM (5/16") Pyramid Square studs with 8 bendable prongs Highest Quality, US Made; Brass base, bright nickel finish Fit standard dies, or are easily set by hand on fabrics by pushing prongs through and bending over