The perfect writing pencil -- the ergonomic triangular comfort grip and integrated extra-long twist-up eraser ensure day-long use without fatigue -- and without mistakes! Never needs sharpening! Staedtler mechanical pencils are designed to reduce breakage of the smooth lead for uninterrupted drawing and writing. Refill and reuse for life. Staedtler automatic pencil is pre-loaded with 0.5mm lead and accepts any degree graphite hardness. When the pros need precision, they turn to Staedtler. At school, the office or at home, Staedtler has created mechanical pencils that can do it all, and do it well. Artists love these - the different size leads make them excellent mechanical drawing pencils. Staedtler's smooth dark leads resist breaking for uninterrupted sketching.