developmental sketches show how features of the product were added to improve the variety of food that can be stored, and also how easy it is for the user to carry and use the product

largest container can be flipped to hold sandwiches

 

smaller container has a spout so sauces can be poured over food

CAD drawing show the solid parts of the product that can be mixed and matched in different combinations

presentation drawing shows the product in use and being carried