What bag is on Brother Taiyuan Mouse's back?

There is a small hand-sewn cloth bag on the back of the mouse brother in Taiyuan. This small cloth bag on Brother Mouse's back in Taiyuan is made of cloth, which is similar in shape to a small bag or pocket and can be tied to Brother Mouse. It is used to carry their food, belongings or other necessities. There is a rope or belt on the cloth bag, which is convenient for the mouse brothers to carry and open. This small cloth bag symbolizes the wisdom, agility and courage of the mouse brothers, and represents their preparation and coping ability when facing challenges and difficulties.