Instruct: Classify the given review into positive or negative sentiment.
Query: It works fine

I ordered this tool to open a Swiss Army watch back case and it worked without using any fancy watch holding device. I had another person hold my watch with a large pliers while I pressed down and turned the wrench. The wrench slipped two times and scratched the back cover slightly, but it is still worthwhile to save $10 for battery change in stores every 2-3 years, besides I have two Swiss Army watches.