The present disclosure provides an interlocking mechanism for organizing or arranging plurality of cards together. In the interlocking mechanism, a recess or groove is provided on one side of the card. On the other side of the same card, the recess may appear as a protrusion. To organize the cards, one or more cards may be brought together on top of each other such that the protrusion of one card may be aligned with the recess of the other card. Once aligned, the cards may be stacked together by inserting the protrusion of one card into the recess of the other card. The stack of cards formed in this manner will bind the cards together such that there is no chance to lose or drop any cards unless the user intends to do so. Notably, the user may conveniently carry the plurality of cards as a block.

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Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.