Creo Collapsible Airtight Silicone Food Storage Containers, Freezer to Oven Safe, 1000ml 1000ml food storage container Transparent containers are collapsible for easy storage Oven, microwave, freezer and dishwasher safe Airtight lid with vacuum seal is leak-proof and keeps food fresher longer BPA-Free silicone is safe to use at temperatures from -40F to 446F