【Flip-Up Dock Ladder】Thanks to the flexible design, this flip-up dock ladder can be turned up and fixed when not in use, leaving the water surface to avoid seaweed twining and seawater corrosion. It is made of aluminum alloy frame, ensuring security, stability, and better corrosion resistance. The 4in widened pedals include nonslip rubber pads for offering strong 350lbs load capacity and friction force. ladders with 4-step and 5-step for your option. It's widely used in docks, sea boarding, and swimming pools