| 摘要 |
A stretchable wrist band includes a message printed on an outer portion thereof, wherein the message is indecipherable when the wrist band is in its relaxed state, but the message may be read when the wrist band is stretched out. The wrist bands may also include pictures or designs, rather than (or along with) text, and the pictures or designs may only be properly perceived when the wrist band is in the stretched state.
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