| 摘要 |
<p>The device has two floats (5, 6) made of polystyrene, a plastic hollow central rod (3), a brightly colored ball stopper (7) made of polystyrene, and two rubber rings (4), where one of the floats comes into contact with the other float. The floats are in contact with a water surface, and the ball stopper is held in high position according to the adjustments carried out on the floats by the rings, where the device is suited for a cane or a throw for fishing.</p> |
