This set includes three small plastic containers with screw lids in three different colors - red, blue, and green. Each container has a diameter of 3.5 inches and a depth of 3 inches, with a height of 3.5 inches. These insulated food containers by Thermos are perfect for storing and transporting food items, and are reusable. They are made of durable plastic material and are easy to clean. The lids are easy to screw on and off, ensuring a secure seal. Use these containers to store leftovers, pack snacks, or bring lunch to work or school.