Great Compatibility - 1000 Sets of #2 type grommets feature 3/8' (9.5mm) hole setting size; 11/16' (18mm) outer diameter and 1/4' (6mm) height; perfectly compatible with hand press grommet tool; manual and semi-automatic grommet machines that are using #2 dies; applicable to our grommet machine models YES0388/YES0389/YES0390; any inquiry is welcome Easy to Use - Easy to be fixed on the dies of grommet machines and grommet tools; then you can press to push grommet and washer together to get an eyelet on the material Durable Material - Made of sturdy metal material; durable and not easy to crack and deform; smooth brass finish for rust resistance and corrosion resistance; suitable for long-term use Multiple Usages - Grommets are applied for setting on different materials such as leather; canvas; PVC cloth; tarp; denim; corrugated paper Wide Application - 1000 grommet sets are suitable for large production of clothing and leather manufacture; also perfect for repairing fabrics; embellishing items and creating your personalized handicrafts; applicable for banners; signs; awnings; posters; curtains; digital printing; scrapbooking; clothing; belts; bags; shoes; etc Specification:Grommet Type: #2 Inner Diameter(Hole Size After Setting): 3/8" (9.5 mm) Outer Diameter(Top of Grommet): 11/16" (18 mm) Height: 1/4" (6 mm) Material: Iron with brass finish Net Weight: 2 Lbs (0.92 kg) Package Content:1000x Grommets1000x Washers