About this item Set of 5 Mixing bowls with 5 lids that nest together for mixing and storing in gray tones Made of Polypro, a wheat straw blended with food grade polypropylene, making it unbreakable Each lid is air-tight and features a see through window and fits securely with a strong seal for storing Bowls are lightweight, durable and break resistant; microwaveable and dishwasher safe; each bowl measures: small – 5.35″ x 4.13″; medium – 6.54″ x4.72; large – 7.72″x 5.31″; X-large – 8.90″ x 5.91″; XX-Large – 10.08″ x 6.50″ Food safe, BPA free, Phthalate free, Prop 65 compliant