I agree the 3 inch tubes work on substrates but try stripping a box truck, pan face or a print on metal. The Stripper Pole combined with the ratchet applies the right amount of torque to make stripping vinyl much easier. Honestly we have been in the
sign industry 20 years and used all types of various methods to remove vinyl. From experience this is by far the best, nothing has ever been as fast. The tool has spacers on each end that keep the tool from touching the surface and the angle created aids in the removal of the graphic. Check out the vid we are removing vinyl from a pan face and an old van as well.
http://www.youtube.com/watch?v=GXLFtyDYUB0