Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Didn't work at all

I don't know if the one I got was perhaps a defective run, but they didn't work at all. They had hardly any tar in them. I tried 4 of them, and on every one, air would just come up rapidly through them and come out the two ends that were coming out of the top of the tire. They were completely unlike others that I have used that were very tar-filled, so much so that they are rather difficult to get out from between the two plastic sheets that they came between and leave a bit of tar behind on those plastic sheets. These Slime ones left no tar at all and didn't seem to have much tar in them at all. I returned this pack of Slime plugs and bought a competing brand instead which worked perfectly as expected.