Made From 100% Pure Melamine - Heavy Weight Bowls Have The Look & Beauty Of Ceramic - Provides Durablility & Chip Resistance * Non Slip Gasket On The Bottom Of Each Bowl Provides Improved Grip & Surface Protection * Each Bowl Nests - Easy Storage! * Included are Lids - Provide An Air Tight Seal To Keep Food Fresh * Dishwasher Safe Top Shelf Approved