Description:Holds seven 35mm strips of 4 frames, 28 frames totalExclusive thin backing coupled with high clarity allows you to make quality contact sheets without removing or handling negativesContact prints on 8.5x11Strong continuous seams prevent negative hang up3 mil top sheet and 1.8 mil bottom sheetArchival quality polyethylene - NO PVC - safe for long term storagePAT passed25 pages per packDimensions:77?16"W x 113?16"H