This Snapware Pyrex Glass Storage Food Containers Lids 18 Pieces set is made of Pyrex tempered glass, which is safe to use inboth the microwave and oven. The lids are airtight to keep food fresherlonger, yet are easy to put on and take off. Plus, you can write on the lidsto 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 smallrectangular containers with lids. 2- 4-cup medium square containers with lids.2- 4-cup medium round containers with lids. 1- 6-cup large rectangularcontainer with lid. Features: Airtight, leak-proof lids with 4 locking tabsStain-resistant tempered glass containers are microwave, oven, refrigerator,freezer & dishwasher safe Space-saving, nestable design Write + Erase lids foreasy labeling of contents BPA-free Refrigerator, freezer, microwave & top-rackdishwasher safe

• Graduated sizes store inside each other, including lid
• Oven safe glass
• Microwave and freezer safe
• Clear, Stain proof tempered glass
• Bake, serve, store, reheat
• Leak proof seal
• Easy open and close latches
• features re-writable area
• Durable 4 Latch Seal Airtight Lids.

• 2 x round 1 cups/ 224mL (8.1 cm x 4.3cm) Container and Matching Lid
• 2 x Rectangular 2 Cups/473mL (15.2cm x 10.4cm x 3.8cm) Containers and Matching Lids
• 2 x square 4 cups/ 950mL (14.7cm x 5.7cm) Container and Matching Lid
• 1 x Rectangular 6 Cups 1.4L (20.3cm x 15.2cm x 5cm) Container and Matching Lid
• 2 X Round 3.7 cups/883mL Container and matching Lids