Colorful and bold, Zensations Mechanical Colored Pencils provide smooth, rich, vibrant colors that blend easily for shading and color mixtures. With a triangular barrel that are easy to hold, they provide excellent control while coloring or sketching. The 2mm lead is durable, long lasting and completely refillable and never needs sharpening. The triangular barrel prevents rolling and stays on desk. AP certified non-toxic. The 12-color set includes one each of yellow, orange, blush pink, red, bright lilac, blue, green, light peach, white, steel gray, black and blue. The 24-color set includes yellow, orange, blush pink, red, bright lilac, sky blue, brown, green, light peach, white, steel gray, black, blue, light pink, ice blue, ruby red, light green, yellow ochre, deep fuchsia, dark brown, peach, terra-cotta, sap green and pink.