Buy a composition book you can learn from. Every chemistry student will need to memorize the periodic tables. What better way than to have them available at all times on the cover of their composition book. With this colorful cover, they will be the envy of everyone in chem class. They can also have it handy as a reference all the time. Makes a great gift for your chemistry teacher. Features: 8-1/2 X 11 inches college ruled paper - Colorful and functional cover - 110 pages