Photo of the day, #162

Hint: Most people have used this before

Hey thingamajiggers! Hope you are having a wonderful Wednesday so far! Today's thingamajig is a very common household item. Everyone uses this at least once a day. But I think that adults use it more often than kids. I have heard that this thingamajig should be replaced every 5-7 years. But I probably had mine longer than that. I'm too cheap to get a new one. They are quite expensive. What is it?