Review on Wrist And Forearm Strength Trainer - Yes4All Wrist Roller & Forearm Roller For Effective Workout - Fits 1-Inch Standard & 2-Inch Olympic Weight Plates - Wrist/Arm Blaster For Enhanced Results by Michael Hemmig

Tested this product with 10lbs and the grips slipped instantly even with a tight squeeze on the handles. I removed the grips by hand and coated the metal pipes with gorilla glue. I let set overnight and the grips didn't move at all. An alternative might be removing the grips and replacing them with tighter bicycle grips. After the glue the product is fine but it should come with some type of adhesive to hold them on to prevent the total slip out it came with. Three stars because it needed modification. I'll update this review if the welds don't hold up over time.