Heat and reheat foods with the convenience of a built-in steam vent using the locknlock performance glass 33-ounce vented glass food storage container. Featuring a unique 4-hinge locking system for freshness that lasts longer, locknlock performance glass storage containers are constructed from borosilicate glass, which can withstand both high heat and sudden cooling but is 10 percent lighter than tempered glass for easy, on-the-go use. The airtight and leakproof lid has been durability tested to last up to 3 million uses, and features an innovative steam vent to prevent pressure build-up when foods are heating or reheating in the microwave. Plus, locknlock performance glass containers are microwave, freezer, oven, and dishwasher safe (lid not intended for traditional oven use). Locknlock performance glass containers are also stain and odor resistant, easy to clean, and come with a lifetime limited warranty for healthy, happy, no-worries food storage. Lock in airtight and leakproof performance with freshness that lasts with the locknlock performance glass 33-ounce vented glass food storage container. Features: Microwave Safe, Transparent, Dishwasher Safe, Oven Safe Measurements: 7.9 Length/Inches, 2.9 Depth/Inches, 6 Width/Inches Capacity: 34 oz. Care: Dishwasher Safe Decor Styles: Traditional, Contemporary Country of Origin: Imported