Equipment (100) for the tip of pens (1) with pointed envelope, mines and chalks comprehensiveA top body (6) with a reception room (7) for a front end of the pen (1),the mine or chalk, with the reception room (7) at a first end opening (8) for the introduction of the pen (1),has a mine or chalk in the reception room (7) and/or a top housing with a top body (6) with a reception room (7) for a forward end of the pen (1),the mine or chalk, with the reception room (7) at a first end opening (8) for the introduction of the pen (1),the mine or chalk in the reception room (7),-a top unit located within the top body (6),an interchange and/or locking element, fixed or inseparable on the top of the head body (6) or on the top of the head body and detachable or inseparable on the top body (6),which has at least two transverse openings (3a, 3b, 3c, 3d) with different diameters, with the alternating opening and/or closing element (2)in axial direction (A) moving between a release and a fixation position and in the release position around An axial direction (A) rotating axis (D) is rotatable so that one of at least two transition openings (3a, 3b, 3c, 3d) or a non-transition opening (3a, 3b, 3c);(d) a section (18) of the alternating opening and/or closing element (2) is or can be arranged in an axial direction (A) cursing with the opening of the introduction (8) in order to maintain or change the diameter of the opening or to close the opening of the introduction (8).
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