How do I correctly load a refill for a 1.12mm Sketch Pen (Sole, Fuoco, Luna)?

To change the lead of a mini Sketch: turn the tip downwards and turn the tip counterclockwise to release the remaining lead (fig. 1). Insert the new lead by turning the tip clockwise (fig.2) until you obtain the desired length of the lead. To change the rubber pad: turn the bottom plate counterclockwise (fig.1 bis), remove the old rubber pad (fig.2 bis) and insert the new one. Turn the case back clockwise and use your pen.