Campus Study Filter Ruler
Make use of your spare time with "Bite-sized study" to memorize
Have you ever had an experience like this?
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I often lose my memorization sheet.
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The sheet creases easily, leaving it crumpled and hard to use.
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The sheet is too big and covers parts you don't want to hide.
Features of the ruler that can also be used as a Campus Study Filter Ruler
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It fits in a pencil case! It's thick enough to fit a reference book inside.
Compact size that fits neatly into a pencil case.
It is thin enough that it does not take up much space when placed between reference books or notebooks, so you can quickly take it out when you need it and use it as a flashcard or ruler. -
Extremely easy to hide! Wide ruler
It is wider than a regular ruler (15cm) so you can easily cover the parts you want to memorize.
It can cover a wide area of text in textbooks and notebooks. -
The marker does not bleed easily when drawing lines
The edges of the ruler are cut at an angle, so marker ink is less likely to get on the ruler and bleed, or stain your hands.
Product video
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HOW TO USE
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Can hide text written with orange marker or light blue pen
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Can hide text written with green marker or orange pen
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Easy-to-read memory
Variations
