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Label for the blind
It can be attached to the surface of any object you want to mark such as similar bottles, books of the same size, various food packs, etc.
When you press and crush the bulged plastic bubbles, the braille can be touched and read. Several labels can be used at the same time in a certain order for memorizing.
The edge of the label is raised, which not only serves as protection for the bubbles in transit but also helps the blind to find it quickly.
Zhejiang University of Technology