Kwikee Platinum Series Double Step has new technology making it the firmest step in the industry. Environmentally proven and tested at over 40,000 cycles, proving its long lasting durability. It also eliminates the need to adjust a cam to improve stiffness. Even with the linkage dis-engaged, this step will lock in the out position for usage. Available with a 2" deeper drop, it bolts into existing step frame holes for easy installation. Made by Kwikee steps. Includes step control unit. DOES NOT include switch kit. 24" tread. MFG: 9010000220