The fascia gun, which has achieved mature development in Europe and the United States, has begun to enter the field of mass fitness in my country in recent years. It has rolled up a wave in the rapidly rising domestic fitness market and has now become a necessary fitness equipment for fitness people. In response to this development trend, we have introduced this brand new muscle fascia relaxation massage gun. Different from the traditional type of fascia gun in the past, the handle of this fascia gun is designed in a square ring. The user can hold the hand on any four sides and massage the muscle tissue of various parts of the body from multiple angles and directions. The problem of difficulty and inconvenience in massaging the back of the body makes it easier to massage the back muscles.