I have bought a case similar to this in the past, and I can tell the quality is definitely different. 5 and I ordered the size 10. On the new one, the dash pad stuck well but the suction cup won’t hold to the dash pad at all (yes I flipped the lever down). Great for taking on a plane, and not worried about stuff banging into my Quest anymore. I love this Bluetooth speaker! I returned them for a size 9 which fit perfectly. These side rails dont come with any instructions or help. I think I would have a little more peace of mind if it had a second screw to secure it. But no more! Dont worry about it.