120GSM Thick Paper: Our graph grid spiral notebook adopts 120gsm acid-free paper. Thick paper with no bleeding pages allows you to use both sides of the page. 3 Color Hardcover: Triple color hardcover is designed to help you manage different subjects. The sturdy protective transparent cover allows you to design your notebook. Dural Spiral Binding: Large and sturdy wire rings make it easy to flip the paper and the journal lays completely flat. Removable Elastic Band: The package comes with elastic closure strap to keep it closed or marking a page, you can also remove it if you don't need the strap. Wide Application: You can use the spiral graph journal for bullet journaling or take daily notes.