| 摘要 |
The pouch (3) is formed of flexible clear plastics with front (4) and rear (5) panels fixed sealingly together at their peripheries to define a hermetically sealed chamber (7) which contains movable insert grains (10). The pouch can have fixings (11) to retain a card (2) which supports an image viewable through the movable inserts. The card can be a post card fitting into a recess defined in the pouch.
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