Blue 0.5mm Lead Mechanical Pencil

This writing instrument is designed to protect its core from damage regardless of pressure or angle. When writing with strong vertical pressure, a built-in spring in the axis prevents the core from breaking or missing upward. Applying pressure at an angle causes metal parts of the tip to automatically guard and wrap around the core, preventing breakage. The device features two mechanisms that automatically adjust to match the force and angle of writing, ensuring consistent performance. It can write more than four times from a retracted state without damaging the core.