Grommet + Washer - Sz. 5 Black (Dozen)
(5/8" inside diameter).
These are the 2-part grommet and washers... much better quality and results than the single part "spurred grommets".
Works only with the CMS-GST-HM Grommet Setting Hand Machine listed in Related Products below AND the Grommet Setting Dies / Cutter Sz.5