The Smart Seal Glass Food Storage Containers are made of naturally BPA-free borosilicate glass, enabling them to withstand extreme temperature changes without the risk of cracking or shattering. The Smart Seal lids ensure a leakproof seal, and an elegant design means the Containers can move seamlessly between the oven and the table. Microwave & Dishwasher Safe Reviews There are no reviews yet. Be the first to review “3.5 Cup Glass Rect. Container” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.