1. Fish Scale StructureThe foldable stool is made of high density, thickened PP material. And we use fish scale structure and high precision buckle design to increase the strength, stiffness, and stability of the folding stool. So our foldable stool becomes more robust and durable, with a load capacity of 400 pounds. 2. Easy to operate We have added a frosted surface to the folding stool and a non slip design on the bottom. So everyone can use our folding stool comfortably and ly. Our fish scale structure is so precisely designed that everyone can easily open and close it as described in the instructions. 3. 12 Height LevelsThe height change of our portable stool from fully closed to fully open is 2.56 inches to 17.72 inches. We have designed twelve heights for you to ly choose the one that makes you comfortable and use it. So our telescopic stool can be used by you and your whole family. 4. When fully closed, the size of our portable stool is 9.84 inches9.84 inches2.56 inches. And we have added an adjustable length carrying strap. You can easily carry it on your trip. You can also store our folding stool in your backpack or in your car. In short, it doesn't take up too much space, so you can travel easily!