Review on DEERU Bicycle Grip Lock - Premium Rubber Handlebar Grip for Mountain Bike, BMX, and Folding Bike - Anti-Slip, Shockproof by Richard Puckett

First, as many have said, the clamps do not fit properly and do not clamp securely as they are. The clamps fall off too soon and the handle's plastic tube isn't designed to flex and lock properly. I had to wrap a strip of tape around the bars under all 4 clamps before the knobs stopped turning. The clamps have reached their smallest closing dimension. If you want to see how the mounting handles should be made, buy a set of double ODI mounting clips. ODIs are 2-3 times more expensive than these but I think they will be 10 times better. Now I can tell you that on the Deeru the grip rubber is very thin, the plastic tube is too flexible and they probably won't hold up. Just take a look. This might be fine for someone who rides a few times a month if you're more likely to ride at ODI or other genuine brands.