I will be selling five pieces, divided from the ones in the photo. These are normal, without valves. I mainly use these for making miso, pickled plums, and fermented seasonings. Since barrels and pickling containers take up space and get in the way when not in use, LamiZip bags are very convenient. The size is 300mm (height) x 220mm (width). They are about the same size as A4 paper. In addition to these, I also sell LamiZip bags of the same size with valves. Please purchase according to your needs.