The 4" x 5" Eco Stone Paper Notebook with Pen features a hard recycled craft paper cover. 70 sheets of white lined stone paper. Stone paper is waterproof and features a superior smooth writing experience. Black elastic pen loop. Color matching ballpoint pen with black ink cartridge. Through a partnership with 1% For The Planet, one percent of sales of EcoSmart products will be donated to nonprofits dedicated to protecting the planet. Due to the nature of the material, there may be color variances.