Amarine-made Heavy Duty 4 Steps Boat Marine Dual Vertical Telescoping Tube Stainless Steel Sport Diver Ladder - 4 Steps - 1084 Heavy Duty - rated to 400 lbs (181kg) boarding weight Superior corrosion resistant electropolished stainless steel Dual 1.25" (3cm) center post design - angled mount for stairlike usability Smooth slide with nylon bushing between ladder sections prevent galling and inadvertent deployment Oval shaped steps with non-skid surface for comfort