But the barter company's things can't meet all your needs. Barter companies have drinks, non-staple food, daily chemical cleaning, small gifts, small commodities, furniture and household appliances, and even real estate and cars. Life services include advertising, hairdressing, beauty, health care, travel, hotel accommodation and so on. Just like a barter company, resource docking never knows what products will be docked in the next moment, just like opening a blind box.