1.album is made of pape cover 2. white PP slip-in pockets 3. screw bound,4"*6",60photos, 120photos and 180photos photo album features:(1)paper cover printed four colors(2)white PP slip-in pockets, 4"*6"(3)could hold 60photos, 120photos and 180photos(4)screw boundthree sizes in one set. art paper photo album