Hello, Master t50 label printer can be edited by computer or mobile phone. When setting the label paper size with the computer, you can select the table first, then click the right mouse button in the blank space in the open editing interface and select Label Properties, as shown in the following figure:

Label setting interface

Enter the label width and label length in the pop-up window, and select the required label style, as shown in the following figure:

Label setting interface

Note: you can find the main manufacturer for video learning, and the video review here is very strict.