10 Piece Glass Bowl Set with Plastic Lids (Microwave, Freezer and Dishwasher Safe) by PKP Patented Nonporous Glass. Stain Free. Warp Free. Snap Tight plastic lid seals freshness. Microwave, Fridge, Freezer, & Dishwasher Safe. Bowl Sizes: 5oz.; 7oz.; 12oz.; 17oz.; 31oz. BPA Free. Odor Free.