This folio measures 5"x7" with a 1" spine. Has interactive features throughout and will hold a total of 18 photos. Right panel has a photo frame that is open from the side. Photos are meant to be placed on top of white photo mats according to the photo sizes listed below leaving a 1/8" boarder. Photo sizes are as follows: 4.50"x3.25" (1) 2"x2.50" (4) 2.75"x2.75" (2) 3.50"x3.50" (2) 4.25"x6.50" (1) 4.50"x2.50" (2) 4.50"x3.50" (6)