Some of the amazing features of this product:

Dimensions: 4.7” x 4.7”;
42 sheets/84 pages;
Highest quality 250GSM paper,high quality paper, suitable for long-term storage;
Durable hardcover;
Firm binding;
Compatible with most dry media: colored pens,water color pen,marker pen and more;
Small, portable, convenient, and practical safekeeping.

Colorful lead: fine texture, flat coating without noise.
Watercolor pen: suitable for dry and wet painting. Pay attention to controlling the amount of water in wet painting and avoid slight wrinkles on the paper.
Mark pen: The color is pure and can be stacked, and it should be noted that the color will penetrate to the back of the paper,It is recommended to use a piece of paper to draw.