Whats the difference between the abcoaster and the abcoaster pro?

According to the product website, in addition to all the standard features of the regular Ab Coaster product, the Ab Coaster PRO also features: · softer arm and seat cushions · heavy-duty steel tubing · ultra-glide nylon rollers There is also an increased weight limit on the PRO. I have seen the 2 products sitting side-by-side, and you can tell a big difference when you see them in person. The PRO looks much more substantial than the regular unit. You can clearly see the differences in quality.