Glue it or lose it! I lost it on the first ride : ( The product appears to be great quality, this was mostly user error. I had a feeling I should glue it on but received it the day before leaving for a riding trip and stuck it on w/o adhesive. An hour into riding I noticed it was gone. The funny thing is- mine was blue and we found a red one that day so I guess I'm not the only one w/ this issue. Unfortunately I was not the one who found it and am still using a makeshift gas vent tube.