| 摘要 |
The main structure is either a ring or rectangular shape and can be opened at one side in order to arrange the device around neck and shoulders. Two short vertical bars (4,7), slightly pointing away from the head of the user with their upper ends, are fitted with mirrors (5,8). Two downwards pointing vertical elements (8) with soft lower ends are positioned on the chest, the back of the user respectively, in order to support the device (1).
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