Kaisu Technology Co., Ltd. specializes in the production of fitness equipment, the advantage of Kaisu arm strength device is that the price is affordable, about 29 yuan, suitable for users who enter the arm strength device for the first time. Although the price is affordable, it also has a good performance in various indicators: the handle has a non-slip texture to prevent slipping and has high safety. It is made of electroplating springs, which have good elasticity and are slightly worse than Shuanglin and Xinyi Wanjia in terms of durability, but they are also worthy of its price. Overall, it's cost-effective.