OXO Good Grip Lock Top Food Storage Containers come in various sizes from 13 oz. to 101 oz. They are BPA free which is very important for food storage and the airtight seal is perfect for storing leftovers in the refrigerator.The OXO Good grip Lock Top food storage containers are ideal for storing leftovers. They are freezer and dishwasher safe and can also be used in the microwave. They are made of a material that is BPA free which is very important for storing food. The lids have a built in gasket which Good Price Small Portable Arc Door Refrigerator insures a tight leak proof fit. Multiple inner locking tabs create an airtight, watertight seal.These food storage containers are airtight and leak proof and are ideal for storing leftovers after meals. Ir seems that we always have leftovers from the dinner meal. These containers are perfect for cleanup and storage in the refrigerator. Tritan material resists warping, staining and odors.The Titan material that these containers are made of is ideal because they resist warping in the dishwasher. This material also resists staining and odors from the stored food after they are used. Crystal clear body and transparent lid make it easy to view contents.The Titan material used in making these containers is crystal clear which is great for viewing the contents. The lids come in white or green and are see thru as well. Freezer, microwave and dishwasher safe.The fact that these containers are safe for the freezer is great because leftovers can be stored in the freezer until you are ready to use them. You can pop them in the microwave for re-heating and when you are finished they go right into the dishwasher. Made from BPA free material.There has been a lot of discussion lately about food containers that are not BPA free. BPA stands for bisphenol A. BPA is an industrial chemical that has been used to make certain plastics and resins since the 1960s. Ideal for lunch boxes.If you want a container that is ideal for use in when you pack a lunch box, these containers are perfect. The snap on lid with the silicone seal will not leak and are perfect for your children. Don't forget to tell them to bring the container and lid home though. Snap on lids with silicone seal.To close the container, just push the outer frame down onto the lid to engage the inner locking tabs and silicone ring for an instant, spill proof seal. The container bodies nest inside each other for easy storage and stacking.These containers are sold in 10 different sizes ranging from 13 ounces to 101 ounces. My wife and I have a full set and we use them every day. They are great for leftovers when cleaning up after dinner with the family. Just place the food in the container, pop on the lock top lid, and place it in the refrigerator.