Review on All Around Universal Dashboard Smartphone Compatible by Andrew Carrao

If you attach them to a textured dashboard or a dirty window, they're likely to fall off. I have solvent cleaned and cleaned the top corner of my windshield and applied heavy pressure for 60 seconds, these things are RELIABLE. Complaints about losing your take-up nut are likely coming from people who haven't checked to make sure they don't have cross threads. My two didn't fit well together in the box, but if you loosen the nut and install the threads properly, they hold my iPhone 11 Max and Bluetooth headphones on bumpy roads without sagging.