* SAFE. Safely supports up to 750 lbs. Thoroughly tested for reliability. Under step light.
* STRONG. Heavy gauge steel & durable powder-coated finish. Solid steel drive rods. Stainless steel bushings. Sealed wire connectors.
* SMART. Power steps feature automatic shut-down if step strikes obstacle. Logic Control Unit senses operating mode. Last out logic extends step one last time when you turn off ignition.
39 Series Single step: 4.25 thick x 24 3/4 wide with 10 3/8 tread. Total extension: 11 1/2