Hey...
I just wanted to say how cool this thing is... I can't believe how well it challenges the core muscles...it weighs 16 pounds but its like trying to wrestle an animal. If your not familiar, it's a tube filled with liquid that's about 5 feet long...as the water sloshes around, inside the tube, your body has to stabilize the thing and your abs do most of the work...I highly recommend it...it's easy to find on a google search if your in the market for something cool: sloshpipe wave
