Rubber hoses made of silica gel have now been widely used in various fitness equipment, taking advantage of their excellent elasticity to replace common metal springs.
It has many advantages such as easy to carry, beautiful, practical, and low-risk. It can be stretched more than 6 times under normal use, and it is not easy to break. Even in the case of a crack, it will not be disconnected immediately, which minimizes the harm to the human body. It is the best elastic material for fitness equipment.
