Xfy Nailheads 9.5MM Silver Cone Spikes Screwback Studs Leathercraft DIY Goth Punk Steel Spots Bright Nickel Finish 100 pcs Highest Quality, Heavy Duty Solid Steel Fit standard dies, or are easily set by hand on leather and fabrics: cut small slit, insert prongs and bend over Great for biker gear, belts, leather jackets and wristbands, dog collars, bike ornaments, etc. Easy application Fit any standard kickpress die or setting tool.