:ICARRY telescoping ladder is made of premium aluminum material. High quality nylon fiber reinforced plastic parts ensure that the collapsible ladder has sufficient load capacity and stability. The retractable ladder's 300 lbs maximum weight capacity can meet most of the use conditions. :To improve security, we have made significant upgrades to the step interface regarding its material and structure, which will be durable for years to come. You will no longer have to deal with constant replacements, saving you money! With the non-slip top cover, the bottom non-slip feet cover and textured steps, the telescoping ladder is almost not shaking when climbing and standing on it. Also, it can protect walls and floors from scratches.