| 摘要 |
A mask strap retaining clip releasably secured a breathing tube of snorkel to a diver's mask strap. The retaining clip comprises a clip unit with the diver's mask strap passed through and a ring unit put on the breathing tube. The ring unit comprises a mushroomlike projection extended from its peripheral surface. The projection comprises a neck having a width and a length longer than the width. The clip unit comprises large and small holes. The neck can move from the large hole to the small hole when a lengthwise direction the breathing tube is aligned with a channel between the holes such that the breathing tube can be disposed in an operating position by subsequently turning itself. The clip unit has a tab and the ring unit has a dent for lockingly engaging the tab when the neck is disposed in the small hole.
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