In a double shack pencil with an eraser rubber attached thereto, the lead tank is rotated according to the movement of the eraser rubber, and the peeled pegs between the front peg and the back peg are twisted or broken, or when the padding is replenished, In order to solve the various difficulties, a double shroud pencil having a front chuck 11 for a piping retainer and a back chuck 5 for leading a lead has a lead tank (not shown) connected to the back chuck The adapter 3 is provided on the outer side of the rear portion of the rear portion of the adapter 3 so as to stop the rotation relative to the outer barrel 1 but to be able to move as an axial direction so that the rear portion of the adapter 3 is prevented from rotating relative to the adapter And eraser rubber supporting mechanisms 12 and 16 composed of installed support bodies 13 and 17 can be attached and detached.
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