| 摘要 |
A diving stick of the type which, after being tossed into a swimming pool, sinks to the bottom while maintaining an upright posture so that it can easily be grasped by a diver, includes a soft malleable outer body designed to prevent accidental impalement, and provisions for enabling the diving stick to sink and maintain an upright posture at the bottom of the pool despite the buoyancy of the soft malleable material. |
