Instruct: Classify the given Amazon review into its appropriate rating category
Query: Good idea

The threaded metal is soft and, after just a few used, fails to stay tight. The metal cap does not have enough spring to keep friction and stay in place. Great in an emergency. A thick waterproofed cloth overhead tarp ripped in a storm. I stitched a loose fitting but adequate patch on in moments. It saved the tarp from shredding up the middle. Lost the spooling cap twice, though.