• Writing and sliding, dries quickly and does not melt when exposed to water. • 0.5 mm. Tungsten carbide steel ball • The soft eraser is non-slip, making the pen comfortable and suitable. • The pen body has a high-quality elastic spring, which is durable and protects the pencil from damage. The pen body is made of transparent polypropylene to show the interior capacity. • Dimensions (Length x Width x Height cm, Weight g): 14 x 2.2 x 7, 287