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. Lami-zip bags are convenient because they don't take up much space when you're not using barrels or pickling containers. The size is 300mm (height) x 220mm (width). They are about the same size as A4 paper. I also sell Lami-zip bags of the same size with valves. Please purchase according to your needs.