Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: The metal spike breaks!

I own many Gardena products and have been pleased with the quality. This sprinkler is the lone exception. The sprinkler worked as advertised, but this is the third one I have owned and on every one the metal spike breaks, leaving a short stubb of metal too short to perform the function for which it was intended, namely, to hold the sprinkler in place. I have written to Melnor/Gardena to purchase a replacement part (just the spike) and am waiting to hear from them. Given the Gardena emphasis on quality I would expect better. If Melnor will not let me buy just the spike (at a reasonable price), I will probably switch to the plastic based sprinkler.