Complete 9 Piece Set Made from BPA free plastic. These containers have been tested to be durable and long-lasting. You can store kitchen staples and baking supplies like rice, flour, sugar, and coffee beans. They are built from clear and light-weight which is visual like glass but not as heavy. The top of our dry food storage container is wide enough to take out food easily. Air-tight lids will keep your food fresh and dry and fresh. The storage containers are able to be stacked which means your cabinet will store more than you can ever imagine. The material is food grade with temperature range of 32 to 150 degrees Fahrenheit.