Whether it is table tennis or weightlifting, it is a strong sport in China, and Double Happiness also has excellent performance in the field of weightlifting by virtue of its advantages in the field of table tennis: the drafting unit of the national weightlifting equipment standard, and the competition equipment of the World Weightlifting Championships. In terms of grip comfort, Double Happiness can improve the knurling according to the characteristics of the athlete's hand shape to make it more user-friendly. In terms of quality, Double Happiness barbells have good load-bearing capacity and are durable. In terms of price, it is on the expensive side and the value for money is medium.