The Power-Lok Carpet Stretcher includes one power unit, a tail block with wheels, three extension tubes, a quick-lok tube, and a durable carrying case with wheels. This unit is one of the most advanced power stretchers on the market and convenient features make this a sought after tool. The switch handle locks into 17 different stretch/pattern holding positions. Features a swivel head for stretching angles or corners and a low-profile head (with side kicking platform) makes the Power Lok compatible with knee kickers. The 18-inch tail block includes a foam wall protector and wheels for easy re-positioning. Stretch up to 23-1/2 feet with included extension tubes.