They didn’t rattle or shift at all. They seem sturdy. fx8890 The quick releases make adjustments easy, and with my trail doc mounted in the tri doc, my bike is held solid for maintenance. The adhesive backing is *only* there to hold the hook in place long enough for you to secure it to the desk or shelf with the included screws. fx8890 What good is comfort if they fall apart? Amazon no longer gives you an easy way to contact seller! fx8890 Other than that everything is okay. No complaints and I recommend for the 2004 4Runner carrying a Jackson Big Tuna kayak. There is no product spec or warranty . fx8890 My favorite was the slideable Tilt because I didn’t need it in the phone all the time. I have no issues using my phone.
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