Thank you for viewing! This is a set of 10 rainbow pencils (2B, black color) that reveal a rainbow when sharpened. Easy to write thick, black lines: These pencils use a 2B core that doesn't require much pressure, making it easy to write thick, black lines smoothly. They are suitable for kindergarteners and elementary school students with weak pressure, as well as junior high school students who write a lot. The core's hardness also prevents fatigue, allowing you to write for extended periods, perfect for long study sessions or office work. They also make a great gift for children or friends. 2B Pencils, Black Color, 10 Pencils Size: Length 17.0cm (fits in a standard pencil case) The core is black. *Colors may appear slightly different depending on your monitor settings.