The main differences between nano lead refills and ordinary lead refills lie in materials, performance and price.

It sharpens pencil leads into sharp tips of appropriate length for writing, doing exercises and taking notes. The tip thickness can be controlled to ensure smooth writing.

Colored pencils are common school supplies for students. They come in a wide range of types and styles. Many people cannot fully distinguish between water-soluble and oil-based colored pencils.

Colored pencils are generally divided into three categories: oil-based colored pencils, water-soluble colored pencils and pastel pencils.

First, let’s correct a common misconception: pencil leads contain no metallic lead; they are fired from a mixture of graphite and clay. The full pencil production consists of two major production lines: lead manufacturing, wooden barrel processing, followed by assembly and painting.

In hard-pen calligraphy, the biggest advantage of a pencil lies in its outstanding expressive power. Even with the same pencil, varying writing pressure creates lines of different shades.