1. Apply glue on the ball board and film;

2. Keep the trademark in the center, put a piece of white paper between the board and film, glue a few millimeters first, and then pull it out if it is correct. Remove the white paper and roll it with a cylindrical object such as a beer bottle;

3. A better utility knife

The kind with a thin tip

Keep the tip of the knife close to the bottom plate

Feel free to cut.

Note: When cutting, the blade must be kept perpendicular to the sponge, and the blade must be lightly leaning against the side wall of the racket. The cutting process must be continuous, and the scalpel must not be lifted midway. It must be done in one go.