Indeed, Tik Tok bought more than 20 dumbbells. Because anyone who dares to sell goods in such a live video place is true, and if it is fake, report it directly. But the quality is generally poor. The price of dumbbells depends on the weight and style. Generally, the heavier the dumbbell, the more expensive it is. Group buying, that is, group shopping, refers to the combination of consumers who know or don't know each other to increase their bargaining power with merchants in order to obtain the most favorable price. According to the principle of small profits but quick turnover, merchants can give group discounts below the retail price and quality services that individuals can't get.