Rockin Beads Brand, 9 Sets Steel Nickel Tone Cone Screw on Spike Rivet Studs 28x10mm Punk Gothic or Leather Work 9 sets Screw on Rivet Studs Great for custom leather work approx 1-1/8 Inch (28x10mm Spike) screw back Rockin Beads (TM) Brand comes with Rockin Beads Size Gauge Card