| 摘要 |
Protecting Device made out of raw rubber, 1,5 to 2 cm length, in a shape of a small tube and needs "wrinkles", like for example an accordion has. The body of this tube is 1,5 to 2 mm wide and the inside of the tube shouldn't be wide then 5 or 7 mm. Having in mind that the device is made out of rubber, it is elastic and should simply be placed over the frame. The protecting device will be made invarious sizes, so that the consumer can pick the right size for their glasses.
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