Phoenix Contact 0831211 Wire marking sheets come in various forms and can be identified by their color, which is typically yellow when unlabeled. To label such a sheet, you can use a range of products including TOPMARK NEO, TOPMARK LASER, BLUEMARK ID COLOR, and others. Each product serves a specific purpose, and the available options are listed among these brands. The wire marking sheets have standard dimensions with a text field height of 4mm, width of 18mm, and are designed to be clipped on for easy mounting, while also being capable of carrying up to 32 individual labels.