Faber-Castell ungraded technical square 21cm Manufactured with high quality materials and precision milling, offering great rigidity and resistance to impacts. Thanks to a perfect glide on the paper, cleanliness and perfection in your projects is guaranteed. Suitable for professional and school use. Measurements: 21 cm Unbeveled edge Made of methacrylate plastic Transparent green color With cover Brand: Faber-Castell.