INSERT SHEETS LETTER SIZE PORTRAIT FORMAT FINAL SIZE 13/16"" X 8"" 600 INSERTS/PKG WHITE HIGH QUALITY PAPER FOR MAGNETIC CARD HOLDERS 1"" WIDTH & ECONOHOLDER 7/8"" WIDTH PRODUCTS. GENERAL PRINTING INSTRUCTIONS INCLUDED. 50 SHEETS/PKG. . 8-1/2""L X 11""H OVERALL DIMENSIONS.