Kum 303.07.21 Polystyrene 1-Hole Inner Pencil Sharpener with Plastic Container, Colors Vary 1-Hole inner pencil sharpener is made of polystyrene Block profile with recessed grip area 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 with plastic can and four assorted colors