EXTRA LARGE RAND SOLAR OVEN TUBE Cook Roasts, Soups, Stew, Ribs, Cakes, Breads, Cookies, Boil Water, Etc. Interior Volume is over 1 Gallon! This brand new Extra Large Rand Solar Oven Tube allows you to cook food for free with only the power of the Sun! This high quality Rand Solar Oven Tube allows you to cook anything that you can cook in a conventional oven. You can Cook Roasts, Soups, Stew, Ribs, Cakes, Breads, Cookies, Boil Water, Etc. If you are cooking a roast, you can use either an elongated tray or aluminum foil to hold the meat and allow you to slide it in and out. If you are boiling water, just pour it in and put it in the Sun! The same goes for soups, stews, etc. You can cook right on the inside of the tube. The tube works so well as an oven because it is made of 2 layers of glass with a vacuum between the glass layers. The outer glass tube acts like a greenhouse allowing the power of the solar rays to enter the cooker. They then heat up the darkened inner layer to extremely high temperatures. The vacuum between the layers the acts as a super insulator to hold all of the trapped heat inside the tube. The features of this Extra Large Rand Solar Tube include: Cook Roasts, Soups, Stew, Ribs, Cakes, Breads, Cookies, Boil Water, Etc. Interior volume of this tube is over 1 gallon!! Inside and outside of tube are nice clean Pyrex type glass with no coatings on it. This makes cleanup a breeze. It can be washed normally. This solar oven now comes with a convenient high temp silicone rubber stopper to cover the open end. Cooking temperatures regularly reach up to 250 degrees without reflectors, or if you add a reflector, temperatures can reach 400-600 degrees! Since it is made of glass, it will last virtually forever if it isn’t dropped or otherwise broken. Approximate overall size is 26-1/4″L(Overall) X 5″ Outside diameter. Approximate inside dimensions are: 23-1/2″L X 4-1/8″diameter.