Effective, but one broke in the first month

One tab broke in the first week, but the plastic is so hard it is sometimes a little difficult to push the tab in without using a lot of force. They don't look terrible, and except for the broken one it seems to work as advertised. I can't turn on the gas stove without opening the knob cover. I've got a GE gas stove with 6 knobs (five burners and one for the lower oven) so that's one reason I went with this product. A lot of the others come with only 5.

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