This is an A3 size photo frame. It can display 12 or 24 square photos. I used it to display my child's monthly photos from one month old to one year old for about a year. This product is discontinued by the manufacturer. It's hard to find similar cute frames, so I recommend it to those who need one!! ↓ Here is the official description: [Product Name] Coti Selectable Photo Frame [Product Description] Turn family memories into a single piece of art! The "Coti Selectable Photo Frame" allows you to choose from 3 ways to display your photos. [Record of the First Year] This 12-window frame allows you to display photos of your child from birth to one year old, one photo per month. It's great to be able to fill it in month by month and display their growth over the year in one place! (※Compatible with half-size prints) [Paper Mat for Arranging Displays] A mat is included that can display 12 square printed photos. [Easy Layout] You can display photos printed in a square shape as they are, making it convenient. Anyone can easily create a stylish frame! [Also as a Poster] Remove the mat and an A3 size photo will fit perfectly. You can display large printed photos or landscape photos like a poster, or you can leave the inner picture as is. [Freely Stand or Hang] It comes with a stand and hook on the back. You can stand it on a cabinet or hang it on the wall. (Both vertical and horizontal) [Design that Blends with Interior] Natural white color. If you have siblings, it's also recommended to display them in different colors! [Materials] Polystyrene, PET, Glass, Paper Mat [Country of Origin] China [Size] Width 320mm, Height 445mm, Depth 20mm