Snapware Pyrex 18 pcs Glass Containers With Lid Food Storage Glasslock KeeperProduct Details Item may be available in your local warehouse for a lower, non delivered price. This Snapware set is made of Pyrex tempered glass, which is safe to use in both the microwave and oven. The lids are airtight to keep food fresher longer, yet are easy to put on and take off. Plus, you can write on the lids to eliminate the guesswork of what's inside. Then, erase the lid and reuse. Includes: 2 1 cup small round containers with lids 2 2 cup