Printfile 7-35MM Strips Total Of 42 Frames - Printfile 357BXW25 Holds seven 6 frame 35mm strips, 42 frames total. Dimensions: 9-15/16" W x 11-5/8" H Exclusive thin backing coupled with high clarity allows you to make quality contact sheets without removing or handling negatives. Strong continuous seams prevent negative hang up. Top sheet is 3 mil and bottom sheet is 1.8 mil.