A ball-point automatic plastic pen with a trihedral body and large clip. Opaque and colorful plastic with the distinct effect of glossy surface. Writing knot is automatic, push-button with pressure action and without fixation in depressed position. Pen is introduced in severe design that includes tapered tip and trihedral body with rounded ribs. Large U-form clip has wide shaped line that looks like continuation of the pen body. Push-button has cylindrical form with rounded end. Availability of structure element allows to create various color combinations.