Rockin Beads Brand, 19 Sets Steel Nickel Tone Blunt Nose Screw on Spike Rivet Studs 11x8mm Punk Gothic or Leather Work 19 sets Screw on Rivet Studs Great for custom leather work approx 1/3 in high 3/8 in wide (8x11mm Blunt nose) screw back Rockin Beads (TM) Brand comes with Rockin Beads Size Gauge Card