| 摘要 |
A device installed in the vent hole of a windsurfing board to warn the user that the vent plug is not installed, and the board should not be placed in the water. Additionally, the device has a container for holding the vent plug when it is not installed in the board, thus preventing loss or misplacement of the plug. Also, the device contains a tool for installing and removing the vent plug before and after the use of the invention, thus making it very convenient to use the invention.
|
