The Card Guard Mini Binder is a blue, plastic binder designed to hold 40 trading cards. It has a flexible cover and a double-sided page type, with 20 pages total. The binder is compatible with standard-sized cards and has side loading pockets. It features PVC-free and acid-free materials, making it suitable for all sports and trading cards. The Bullsitoy brand binder has a strap and can fit up to 40 cards.