Instruct: Classify a review into positive or negative sentiment.
Query: Good idea, but poorly made

I bought this about a year ago and had a chance to use it today.Total Failure.The puncture was small, making it difficult to insert the plug. Finally after it just started to go in, the metal tube on the Dynaplug tool buckled and bent over. The tool simply is not strong enough to work unless the leak is large enough. If they had simply used a stronger tube on the tool, it would have been a great tool. As it is, it is worthless, and you cannot depend upon a tool that breaks so easily when repairing a typical flat.What a waste. Good thing I had my motorcycle tire plug kit with me, as it worked perfectly due to a better design.Very disappointing.