STABILIZER BAR: Added 2 stabilizer bar on the basis of A frame ladder, which can increase the contact area between the ladder and the ground and improve the safety of the ladder. Our ladder effectively improves the stability by 36% compared with the other ladders. TOOL TRAY: The ladder come with a large removable tool platform to accommodate tool equipment and reduce the number of times you climb up and down the ladder. SAFETY LOCK: We use safety protection hinge Lock and solid J lock, which allows the ladder to be fixed at a certain height and angle. QUALITY MATERIAL: Made of thickened aluminum alloy, it can hold up to 330 lbs. Resistant to wear and tear, corrosion, rust, high and low temperatures, and aging.