The T019 is a 32 oz natural-colored PP plastic round tub. Tubs have wide mouths, tapered sides, and a slightly smaller base. When empty, they're nestable. When fitted with their appropriate flexible lids, they're stackable. Tubs are often used for dairy products like yogurt, cheese, butter spreads, cream cheese, and other products like jams, jellies, deli salads, salsas, cookie dough, and more. Polypropylene (PP) is marked with the resin identification code of 5. PP is less flexible than LDPE, somewhat stiffer than other plastics, reasonably economical, and can be translucent, opaque, or of any color. PP has very good resistance to fatigue, and has an extremely high melting point (320 degrees Fahrenheit or 160 degrees Celsius). This item is dishwasher-safe