100-piece set includes eyelets and spur washers to make 50 complete grommets * Use to reinforce holes & prevent tearing with canvas, vinyl, leather and fabric * Great for tarps, canopies, luggage, upholstery, curtains and boat covers * 3/8" diameter hole when set, 13/16" flange diameter, 3/16" length-under-flange * Brass-plated steel for strength & corrosion resistance; excellent quality - made in Taiwan