| 摘要 |
A drain closure that maintains a stopper in any open position by force exerted by the post against the internal surface of the bore of the stopper. The post has ridges that extend outwardly from the outer surface of the post. The post also has an open elongated slot that extends through the post. When the post is received in the bore of the stopper the ridges are compressed toward the open slot and expand outwardly against the bore to maintain the stopper in place.
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