Science & Exploration Sets features: This paper set is great for DIY drawing use which can develop kid's imagination and potentiality. The scratch bamboo pen set is designed for the easy scratch-off the painting papers. Bamboo art stylus pens are sanded smoothly and polished finely, safe to use. Perfect for kindergarten and primary school use. Features Color: Black Material: Paper Size: About 19.00X19.00X0.10cm/7.47X7.47X0.04inch It is a good educational toy that can train the ability of kids hand on Easy to use and amazing results: Bright colors hide beneath the matte coating, use the bamboo pen to reveal them with a simple scratch Made of paper materials for safe and durable kids playing, enjoy scratch art This creative scratch painting is a nice present for almost anyone, including teens, children, artists, colleagues, family and friends You can give it to your friends as an exquisite gift or put it in your room as a decoration.