[Upgraded Fish Scale Structure]: Note: Please do not sit in a tilted position. Make sure the stool is locked in place before sitting to avoid collapse. ly Designed Fish scale structure gives the portable seat remarkable strength and rigidity. Load capacity reaches 400 lbs far surpassing other brands. Side support is reinforced. The capacity of resistance to tilt is stronger than other brands. All of these make the stool more sturdy and durable..[Premium Materials]: Retractable stool made of high-strength heavy-duty environmental friendly material plastic PA66, the cylinder shape design, tight connecting clasps, and the non-slip base of the portable folding stool will give stability to provide and comfortable sitting..[Foldable & Adjustable Height]: Open and close telescoping stool easily in just seconds, and lock place with slight rotation. When it is closed, snap joints designed on the caps come into play to prevent the retractable folding stool from opening by itself. It can be set to your desired height within the range of 2.4 to 17.5, 12 positions can be chosen according to your usage scenario.