This newly upgraded portable collapsible stool is made of high-density thickened PP material, which is hard, stable, scratch-resistant and wear-resistant. Upgraded fish scale structure and reinforced 10-layer buckle design, increase collapsible stool strength, rigidity and stability. The bottom of the portable stool has a non-slip design, and the side support and anti-tilt ability have also been strengthened, making the stool more durable and safe.The interior of this portable collapsible stool is designed with stiffeners to hold it in place, making the stool stronger and easier to open and close. The top and bottom of the collapsible stool are designed with two holes, you just need to hold the two holes, stretch and turn them clockwise/counterclockwise, and you can easily open and close them.This portable collapsible stool is only 2 pounds, with a diameter of 9.7inch/25cm, and can be folded into 2.4inch, which is easy to carry and store. The adjustable shoulder strap makes it easy to carry or hang over the shoulder. You can fold the collapsible stool up and put it in your bag. No matter where you go, you can sit anytime, anywhere.