The surface of the scratch rainbow paper is black coating, which can be scratched and painted with bamboo sticks. Paper is thick enough, so don& 39;t worry about being broken by scratching. Scratch paper is a novel and unique painting material, which makes original painting process become simple and safe. It& 39;s designed to use the scrath pens to draw on paper, interesting and funny. Features - Color: Black. - Material: Paper. - Paper Size: Approx. 28 x 25 x 1.5 cm / 11 x 9.8 x 0.6 inch. - Made of paper material, safe and durable for kids playing with. - Designed to use scrath pens to draw on paper, interesting and funny. Great gift for kids. - Paper is thick enough, so don& 39;t worry about being broken by scratching. - Suitable for kids of all ages, animal and automobile series, more funny and educational. - Designed to use scrath pens to draw on paper, interesting and funny. Great gift for kids.