RAZOR BLADE USAGE INDICATOR
摘要:
A razor blade usage indicator or counter is mounted on the handle of the razor and moves upwardly and downwardly along the handle as a representation of the number of uses of the razor. Before or after each use, the indicator or counter is moved one position along the handle. The indicator or counter can roll or slide along the handle. Multiple counters may be color-coded for use by different people in a household.
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