Product Number: 0.5-202NDC.32 Color lead writes smoothly, erases cleanly... Even though the color is sharp, it can be erased with an eraser just like a black lead. It is useful when you need to do a repetitive study such as writing the wrong area in red and erasing if possible. Additionally, approximately 400 million nano-dials are added per core, resulting in a strong, smooth writing experience. Pack of 20 Size: Length = 3.0 inches (76 mm), Width = 0.8 inches (20 mm), Thickness = 0.Product Color Trend:Light Blue.