This is a fishing measure sheet from Daiso. The image is a stock photo, so it's been opened, but this is a brand new, unused item that hasn't even been taken out of the package. It's from Daiso, but it's a 300 yen item that sells out quickly and is hard to find, especially the black one. I bought it as a spare, so I'm listing it at a higher price since I don't mind if it sells or not. Reviews are available online, so I'll skip the details. I use the same one, and it's quite excellent.