Filexec Products 4 x 6 Inches Index Card Case, Clear, Pack of 2 (50305-20223)

Oxford Ruled Index Cards, 4" x 6", White, 300 pack (10001EE)

C-Line 58046 Index Card Case, Holds 200 4 x 6 Cards, Polypropylene, 1 Assorted Color

300 SUPER THICK index cards / 4"x6" / 14pt (0.014") 100lb / blank un-ruled / 97 white / note-cards post-cards flash-cards / extra heavy-weight duty, acid-free, 4 X 6 card stock in bulk

Oxford Poly Index Card Guides, Alphabetical, A-Z, Assorted Colors, 4" x 6" Size, 25 Guides per Set (73154)

Oxford Manila Index Card Guides with Laminated Tabs, 4 x 6 Inches, Jan-Dec, Blue (04613)

1InTheOffice Index Card Case, 4x6 Index Card Holder, Assorted Colors (4 Pack)

Oxford Index Card Guides with Laminated Tabs, Daily (1-31), 4" x 6" Size, Orange, 31 Guides per Set (4634)

Oxford Neon Index Cards, 4" x 6", Ruled, Assorted Colors, 100 Per Pack (99755EE)

Find-It Tabbed Index Cards, 4 x 6 Inches, Assorted Colors, 48-Pack (FT07218)