These wirebound notebooks are great for home & office use. The Pressguard covers are coated & embossed, making them very water (and coffee!) resistant. The binding is twin wire, allowing the books to lay flat when writing. Each book contains one double pocket for storage, & has an extra heavy 50 pt. chipboard back for strength & durability. Book / Pad Type: Notebook; Book / Pad Binding Type: Doubled Spiral Wire; Book / Pad Binding Edge: Side; Book / Pad Sheet Size: 11 x 9.