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- Double-clutch mechanism
- Ergonomic grip
- Two Bonus Eraser Included
- Two Extra long 11/4" twist-up eraser
Details: Staedtler Integrity 0.5mm Double-clutch mechanism holds the pencil lead in two places which allows utilization of 97.5% of the lead. Ergonomic grip with grooves placed in a triangular shape to reduce writing fatigue. Sleek black barrel color