Expand your Passport to Your National Parks® Explorer Edition with the Explorer Expander Pack! Featuring more than 30 pages for park cancellations, regional stamps, etc. extra you’ll almost certainly have room to preserve your visit to all 400+ of America’s national treasures! The pages can be neatly organized into your Passport Explorer Edition’s binder ring in seconds, allowing you to quickly get back to exploring America’s national parks. Discover more Passport products in our Passport Store Product Details 36 sheets Approximately 8’’ x 5’’