This design is directed into a desk calendar, more specifically, the present invention relates to can be by clogging the general desk calendar used for file (such as a pencil or ball pen on desk calendar). Drop to panel for this schedule designed, rear panel and a piece of bottom plate including main body and left side, it is made into file on the right of the front part of side for including plate of the triangular cross section for being coupled to body type in the article calendar desk calendar for being cut to and being freely provided in any body part length in the file shell with multiple holes in bending and can be plugged to can be used for multiple purpose, can be held a pen with a general desktop calendar.
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