3M Post Cards, Perforated, Inkjet, 2-Sided Printing, Print-to-the-Edge, White, 4 x 6 Inches, 100 per Pack (C518-I) 4 in x 6 in, White, Print-to-the-Edge Print high quality text and graphics and re-feed to print back side Designed for inkjet printers Perforated for quick results--just print, fold and separate Go to 3M.com/labels to download free templates for easy layout of designs