Melamine 4pc Bowl Set With Lids Made From 100% Pure Melamine, These Heavy Weight Bowls Have The Look & Beauty Of Ceramic, But Provides Durablility & Chip Resistance Non Slip Gasket On The Bottom Of Each Bowl Provides Improved Grip & Surface Protection Each Bowl Nests Inside Of The Other For Easy Storage! Included are Lids, Which Provide An Air Tight Seal To Keep Your Food Fresh Dishwasher Safe Top Shelf Approved