California Home Goods 2 Compartment Reusable Food Storage Containers with Lids, Microwave and Dishwasher Safe, Bento Lunch Box, Stackable, Set of 10 HIGH QUALITY PLASTIC FOR MAXIMUM DURABILITY: Each airtight food storage container is made from high-grade plastic injected molding to ensure maximum durability, flexibility and minimal cracks to prevent damage common among other plastic meal containers with lids. STACKABLE FOR DAILY MEAL PREP: Prepare your meals in advance and stack them in your fridge! Our BPA free food containers are safe for long term food storage in the fridge, freezer and even your gym bag. They make the perfect lunch box containers for you and your family. Eat smart, save money and get healthy! REUSABLE, MICROWAVABLE & DISHWASHER SAFE: Heat them up or cool them down. Like glass food containers, our square food storage containers are built to withstand the microwave and dish washing machine (top rack) so you can save time and use them over and over again. KEEP YOUR MEALS INTACT: Preserve your meals and keep them contained to stay fresher, longer! Our bento dividers help you keep your foods separate. LIFETIME GUARANTEE: We are so confident in the quality of our products at California Home Goods that we offer you a lifetime guarantee. Our factory warranty is only available from the authorized seller California Concepts. Reach out to us if theres ever anything you need; we are dedicated to your satisfaction.