Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Lock Still Works - Gears are Slipping

I have had this can opener for at least a year now and my lock is still intact. However after a year of frequent use I am now finding that the gears that actually latch onto the can are slipping off. Problem because I have to reattach the opener but it still works! I love the fact that it is ultra comfortable and much better than the one I had before. All I can say about the loch is be gentle it is only plastic.