(25) Horizontal Trading Card Divider Cards - Black - Heavy Duty 30 Mil- 2-3/4" x 3-3/4" TCNS28BK30 Fits In Boxes Designed to Hold Cards Horizontally Perfect for Organizing Your Trading Cards Reusable - Just turn it around or turn it over! 2-3/4" x 3-3/4" 30mil Thick