Really like this phone holder. It appears to be solid. Has a nice quick release mechanism for the clamp and the clamp itself works well. I am using it on my motorcycle that has a 7/8" one piece handle bar. I have installed it and it feels really firm. Obviously being the middle of winter here in BC I have not been able to actually try it out on the road but from what I can see I think it will work well. I am using it with an older Samsung S10 in an Otter case. Adjustment for the length of the phone is easy and once set can be firmly secured. There is no width adjustment and my phone together with the case just about squeezes in.