Instruct: Classify Amazon reviews into positive or negative sentiment
Query: great!

These are great! I bought two sets in case one strap were to fail. I drove 12 hours and they never loosened. They are well made and easy to use.Despite what everyone says, they aren't that difficult to open. If you take a picture of the back, (instructions) you tear it pretty easily. From there you can figure out the rest.They gave me absolutely no problems, even through some heavy showers!Definitely recommend.