These clear negative storage pages are manufactured from Acid and Chlorine Free Transparent Acetate Foil. Each page holds 7 strips of 6 full frame negatives. The pages are side loaded and the strip positions are overprinted to help with quick loading. Being Crystal Clear they are ideal for making direct contact proof prints.The binding is multi punched and is compatible with most types of ringbinder.We recommend our Photo Storage binder reference KEN127 which is ?oversize? A4 and is designed for use with these pages with the extra width required.