Review on Universally Compatible Long Neck Car Mount Holder: Securely Hold Your iPhone Xs XS Max XR X 8 8 Plus 7 7 Plus S10 S9 S8 S7 S6 LG and More in Your Vehicle by Brent Webb

I wasn't impressed with this product at all. They don't really have suction from the cup, in fact the clutch provides grip and is VERY STICKY. Luckily, it leaves no residue when removed, and what's there is easy to remove. My biggest complaint is that it just is NOT durable. I have an iPhone Xs Max and it feels tight and tight the first time it's tightened, but after a few minutes my phone jumps and flops. The clamps are just poorly made. SAVE your money and find a better one with a great suction cup (no glue) and strong drawstrings.