Roberts 10-254V Value Kit Power-Lok Carpet Stretcher with 17 Locking Positions and 18-Inch Tail Block with Wheels Stretch up to 38 feet with included extension tubes Swivel head for stretching angles or corners Variable pin penetration for different carpet thicknesses Includes 1 power unit, tail block w/ wheels,six 3ft. Extension tubes, adjustable locking tube, transfer tube Also includes the durable carrying case with wheels and tube carrying case