This is the popular Haines 2 Solar Cooker without a cooking pot. It includes the polycarbonate circular cover and cooking sleeve with silicone spacers to protect the cooking sleeve. You will need to supply your own black or dark colored pot with lid. The pot must have a top flange, no wider than the diameter of the pot, that can rest on top of the cooking sleeve. It must not have side handles that would interfere with the cooking sleeve. The lid must be tight-fitting and preferable made of glass so that the cooking process can be observed without removing the lid.
The Haines 2 works best with a pot that is around 11" in diameter and 4.5 liters in volume. But your dimensions can vary. A dark/black pot is best to absorb the heat.
See how easy it is to assemble the Haines 2 on this video: