Holds sixteen frames of 6x4.5 cm, twelve frames of 6x6 cm or eight frmes of 6x7 cm 120 filmContact prints on 8"x10" paper 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 Archival quality polyethylene - NO PVC - safe for long term storage PAT passed 25 pages per pack