Worrying of lead breaking? With Pilot Mogulair 0.5 mm that comes with an active suspension tip, you can now have a better writing experience. The special built in mechanism enable absorption of 50% of the writing pressure thus reducing leak breakage. When there is pressure during writing, the spring will retract the lead slightly into the tip to avoid breakage. Further, this pencil also features a shaker mechanism where one can shake it to extend the lead.