This set contains 8pcs 6mm bright colored water soluble chalks for all kinds of craft projects. Made of premium material, it is safe and non-toxic. The acid-free ink flows smooth and doesnt bleed on marker paper. They are easy to hold and use, providing great visual results. A nice choice for art class or family recreation. Feature – Color: As shown. – Material: PP. – Size: About 14 x 1.6 x 1.6cm(LxWxH). – This set contains 8pcs 6mm bright colored water soluble chalks for all kinds of craft projects. – Kid-friendly, and acid-free ink flows smooth and doesnt bleed on marker paper. – Chalks are easy to hold and use, providing great visual results. Ink flows smooth and blends well. – Easy to self-clean after blending by scribbling on a separate piece of paper, thus returning the marker to its original color. – The chalks are easy to hold and use, providing great visual results. A nice choice for art class or family recreation.