| 摘要 |
A gravity ball comprises a ball body (1). The ball body is compounded by using multiple layers of spherocolloid (2). A woven-belt reinforcing rib (3) is compounded on the surface of at least one layer of spherocolloid (2). The woven-belt reinforcing rib (3) is compounded on surfaces of other layers of spherocolloid (2) except an outermost layer of spherocolloid (2). |
