Rockin Beads Brand, 48 Sets Antiqued Brass Plated Cone Screw on Spike Rivet Studs 9x6mm Punk Gothic or Leather Work 48 sets Screw on Rivet Studs Great for custom leather work approx 5/8 Inch (9x6mm Spike) screw back Rockin Beads (TM) Brand comes with Rockin Beads Size Gauge Card