1. First break the crab feet into two parts, as shown in the following figure:

2. Then cut off the joint head of the crab's foot with scissors, as shown in the following figure:

3. Then insert one side of the scissors into the crab's foot and cut the crab's foot shell, as shown in the following figure:

4. Then break the crab's foot shell with both hands, as shown below:

5. Finally, the crab feet can be taken out for use, as shown in the following figure: