Not sure which size Trim Masking Tape you should use? Here are a few things to note: 👉 Choose a width that fits the molding or jamb depth - so that it can pull the trim back securely. 👉 We have multiple sizes to offer as tools to fit various gaskets and moldings, but there's no specified use per size. 👉 Our tape is perforated! This allows you to easily tear by hand, helping save you time. Lastly, keep in mind that all vehicles are different. What works on one vehicle may not work on another,