Plastic Photo sleeves 1. Material of photo album cover : printing paper 2. Size : big :22.5*18*4.5cm small 16.5*12.5*4.5cm 3. include:4"*6", big for2 pocket,small1 pocket,4 colors 4.Packing : Shrink 5.Various shapes,sizes ,designs and customized logos are available 6.Inner sheet : PP If you need more information and details , please dont hesitate to contact me ,Many thanks !