http://www.eileensbowlingbuddy.com/

The swing trainer, power trainer, ect.....

At first thought, these products were "silly", maybe because of the colors and the ideas. but......

Then I realized that I use X-ray medical sandbags, sandbags w/ handles which are 5 and 8 lbs. The smaller sandbag 5# looks like a power trainer, 8" sq, and the larger sandbag is 8# and is about 2.5' long similar to a bowling pin.

I swing them once in awhile on my down time at work. But, I've been using them for almost a month just to do bicep, delts, and triceps workouts. And for swinging my bowling arm. I'm not sure if it really works, but I've been posting more at the line and hitting the spots I'm aiming at.

So, just wondering if anyone here uses them and did they notice anything.