• You play your best cards X4. Store them that way!
• Side-loading pockets keep cards secure in rows of 4.
• Room for up to 480 cards in sleeves.
• Pages made of archival-safe, acid-free non-PVC plastic.
• Cushioned cover for comfortable browsing.
• Elastic strap to keep binder closed.
• Size: 12.5" x 12"

"StarCityGames.com has hit it out of the park in their very first outing with these portfolios. Honestly, everything about them is excellent." – The Professor

(X4® Binder review begins at 11:24.)