Use card guides for cross-reference indexes, desktop reference files, account lists or patient or customer address lists. Use alphabetic indexed guides for cross-referencing accounts in large numeric filing systems. Choose from plain or fused polypropylene tabs. Made of heavyweight 18 point stock for extra durability. Available in a variety of sizes with 1\/3 cut blank tabs or Alphabetic (A-Z) 1\/5-cut tabs in assorted positions.