Instruct: Classify the given Amazon review into its appropriate rating category
Query: Not as strong as expected

I wasn't sure if I read it wrong or not but I tried putting my Iphone 7 plus in and it ended up falling off the vent, breaking and my phone was on the floor. Luckily my phone didn't end up cracked, I wasn't even sure why it fell off since there are sharp turns that I have taken before and that one was more of a curve.