The steps for inserting the pearl cotton tube into the cloth tube are as follows:

1. Cut the pearl cotton tube to the required length.

2. Cut the pipe along the center line and unfold it.

3. Insert the pearl cotton tube into the cloth tube, align one end of the pearl cotton tube with the other end of the cloth tube, and gently push it into the cloth tube until it is completely inserted.

4. Align the two ends of the cloth tube and sew them together with a sewing machine or by hand. Be careful not to squeeze out the pearl cotton tube.

5. After completion, the cloth tube can be cut to the required length to make different handmade products.

At the same time, the size of the cloth tube should match the pearl cotton tube so that the pearl cotton tube can be stuffed easily.