Using advanced black wood pen, roller cutting smooth.Length: 175 × 7mm / 6.89.Quantity: 1 box of 12 colored metal pencils.no , heavy metals, aromatic amines and other substances.12 colored metal pencils.Due to different manual measurement methods, please allow slight size difference (1-3 cm).Color: 12 colors.High quality box and special rubber core manufacturing method, the box does not slide, fragile.It is an ideal choice to beautify your handicraft design.Creative, better use of black metallic paint.Due to the influence of light and display, the color may be slightly different.