According to the setting of spring balls, silica gel balls are installed at both ends, which can help back massage and provide better service for users.

Spring massage ball, that is, silica gel ball, is a kind of wear-resistant, high-temperature resistant and high-elastic product. Compared with rubber ball, it is non-toxic, pollution-free, tasteless, non-migratory, and has no side effects, so it is often used in industries with high environmental protection requirements.