| 摘要 |
Disclosed herein is a storage device comprising a base member having an oute r peripheral surface, an upper flexible cover secured to the base member, the cover havin g a lower free edge region to fit over the base member and to lie adjacent the outer peripheral surface, a first tightening means for tightening the lower free edge region against the peripheral surface and a second anchoring means for anchoring the lower free edge region to the base member.
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