Make everything about your food storage purely better with this versatile glass storage container. Featuring a patented 4-hinge locking system for freshness that lasts longer, container is 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. BPA-free container is also microwave, freezer, oven, and dishwasher safe.