Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Didn't work at all

This product didn't work and was a total waste of money--at least for me. I could still easily turn the knobs (and turn on the stove) after putting on the 'loks'. Our stove is a standard brand installed in newer homes but this product may work for other brands. I ended up throwing these in the trash. If you buy the product make sure you keep the receipt.