Updated four existing dose indicators that turned yellow over time. At first I was concerned about the installation, but once I figured out how to connect them, everything went quickly and easily. Also, they look clean and white. Farewell, eyesore! Not to mention the decent cost compared to big hardware stores. Please note this is not a full jar, just a lid. Lightbulbs are not included. I wasn't expecting something like this, but I know that with so many virtual options, it can be confusing. ๐