The Power-Lok Stretcher is the most advanced power stretcher available.   This model is the double case model, which includes two cases, one for your stretcher and tubes, and a tube case that holds up to 4 additional carpet stretcher tubes.

• Power-Lok switch handle locks into 17 different "stretch/pattern holding" positions
• Unique swivel head for stretching angles or corners
• Variable pin penetration for different carpet thicknesses
  Low profile head with sidekicking platform makes it compatible with a knee-kicker
• New design steel handle on head for better grip and repositioning
  Standard 18" tail block includes a foam wall protector and wheels for easy repositioning
• Stretch up to 23-1/2' with included tubes
  The 10-254V Value Kit includes all of the components in the 10-254 plus three extra 3' tubes  So you get a total of 6 tubes, and one auto lok tube.
• Two Carrying cases.  One case holds stretcher tubes and accessories.  Second case is a tube case that holds up to four carpet stretcher tubes.