These large format backing cards are ideal for multiple lifts of the same latent print, palms, feet, or a lift of simultaneous latent prints. The flat-white side of the 5½" × 8½" cards are printed the same as the standard 3" × 5" cards with the reverse side of the card in your choice of glossy-coated white or glossy-coated black. To lift a dusted footprint or a footwear impression in dust, a rubber-gelatin lifter is suggested # FTP000 100 White Backing Cards, 7½" × 16" # FTP000 100 White Cards, 5½" × 8½" # FTP000 100 Black Cards, 5½" × 8½"