Product Description DelGuard 0.5 ¥495 (Tax-excluded price ¥450) Body Color｜White ＜DelGuard (Mechanical Pencil)＞ Protects the lead from breaking under any amount of pressure, from any angle, while writing. When strong vertical pressure is applied to the paper, a spring built into the body allows the lead to move upwards, preventing breakage. When strong diagonal pressure is applied, the metal parts at the tip automatically extend to enclose and guard the lead. These two mechanisms automatically adjust and operate in response to the angle and strength of the applied force. * The lead may break if you write after knocking more than 4 times from a state where the lead is not out. * The lead may break if you write using color leads or leads darker than 3B.