I won this hopper at a scenario game towards the end of May this year. I have used it a couple times just to try it out, it works pretty well. Very similar to the Apache hoppers in build and method of operation. It uses a bend sensor, and agitates everytime a ball passes over the sensor. It is supposes to feed at 15 bps, I haven't done any test to see if it really feeds that fast, but it seems to feed faster than the revvy and reloader 2 I have. It also only uses one 9v battery, has decent battery life, and a little bit of a lower profile. Also has o-rings to size it to your feedneck (all o-rings will be included). An all around good hopper, and for $30 plus shipping you can't really wrong (retails for around $60 I think, maybe $50). The hopper is in like new condition, I just don't have a use for it really so no need for me to keep it. I only accept money orders, and I will not ship before receiving payment unless I have dealt with you before. The only trades I am interested in are Talons or Talon parts (crazy, i know) Post or PM if you have any questions and thanks for looking.