Kum 301.08.21 Magnesium 2-Hole Dome Shape Inner Pencil Sharpener, Colors Vary 2-Hole inner sharpener is made of magnesium The blade is protected against rust by polishing, cleaning, oil coating, etc The blades are made of high-carbon steel, therefore long-lasting and very sharp Dynamic torsion action built into each blade makes for a smoother, cleaner cut Comes in dome shape and three assorted colors