22.8 cm. Heavy duty (Verses the regular coated paper plates). Heavy duty plates for greater strength. Grease resistant. Microwave safe. Ready for life. Friday night pizza party - it's on! Dishwasher disaster - no problem! From block parties to birthday celebrations, clean-up is easy. Be ready for every occasion with high quality, affordable plates, bowls and cups from Simply Done. www.besimplydone.com. Quality Guarantee: If you are not 100% satisfied, return our product for a full refund. Made in USA.