| 摘要 |
A pelvic muscle strengthening device has a conical body with a hollow interior with an interior and an exterior surface. An end cap has a forward face formed with a threaded recess. A cylindrical stud extends into the body and has a trailing end formed with threads for removable coupling with the end cap. A plurality of weights are carried by the stud. A circular central opening with slits in a cross-like configuration in the body.
|
