Features: · Completely air tight, Leak proof and air tight seal for secure storage. · Stem Valve, Vents for microwaving. · Ideal for refrigerator and freezer storage or taking food on the go · BPA free plastic lid is dishwasher safe (top rack only) · Nest and stack for easy storage when not in use · Non-porous glass won’t absorb stains or odors · Glass is pre-heated oven, microwave, fridge and freezer safe, & dishwasher safe