Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great on the boat

I've got an enclosure on my boat that has seen better days. The zippers didn't move as well as they used to, and the hatchway button was almost impossible to undo. I put the snap stick on both, and it's done wonders. The hatch stays securely fastened, but with a light pull on it I'm able to free it. I will be applying this to the rest of the cover, and anything else for that matter that I have trouble with. I would definitely recommend this, and the $10 will buy you a few more years on your covers.