| 摘要 |
A ball for swimming, for example the inflatable ball, contains the envelope and the nipple. The auxiliary multifunctional envelope is made of the strong waterproof fabric with the functional elements such as the saddle, the stickers, the stirrups, the lever, the hands, the ballast compartment, etc. For example, the ball contains the saddle beneath made of two arches connected to the bottom of the vertical length-adjustable bar and to the third arch at the top. Moreover, in the equatorial line the handles and the envelope with the adjustable headrest are attached in perpendicular to the saddle. |
