The Rubbermaid 1806179 Lunch Blox - Salad Kit is part of the new Rubbermaid Lunch Blox Series which is designed to make taking lunch to school or work more convenient and organized. The Salad Kit is designed to allow you to bring your salad, your dressing and your toppings all in one kit. The base allows enough room for that perfect lunch portion salad and the slide-in topping tray gives you room to holdyour toppings like shredded cheese, cherry tomatos, nuts or blue chesse crumbles. There is even a small dressing container with lid to keep your dressing seperate to make sure your salad remains fresh. The kit comes with a snap on Blue Ice Block that keeps you salad cold for up to four hours in a lunch bag. The entire kit snaps together for convenience and space optimization. The Lunch Blox are space efficient and are designed to work together to save space and stay organized in a lunch bag. The pieces of the lunch blox can be configured to fit any lunch bag and work in conjunction with the lunch blox blue ice to keep your lunch chilled for up to four hours. The lunch blox containers are perfectly sized for common foods taken on the go. All Lunch blox containers are Durable and Leak-Proof, as well as Microwave, Dishwasher and Freezer Safe, BPA Free.