Review on Baseball Softball Arm Pro Bands – Resistance Training Equipment for Arm Strength, Pitching, and Conditioning – 3 Levels (Youth, Advanced, Elite) – Includes Anchor Strap, Door Mount – Kinetic Bands by Ryan Gillett

They match the original and so far it's almost identical. Most of the kids on my son's ball travel team have original J-Bands and I wanted these to save some money but also to compare 2. If they were far away I was willing to return them and pay for the originals but after you use them there is no need and we kept them. He's been using them for a few months now (4-5 times a week) and they're holding up very well. The voltage on red seems almost identical to the original. The bracelet is identical. Time will tell how long they last and I'll update this post, but so far they're holding up very well. Worth the money to buy "fake" here :-)