⚪︎L size (postcard size) - 2 Outer dimensions: 17cm x 13cm ⚪︎Extra large size - 1 Outer dimensions: 34cm x 34cm This size has been discontinued. I used it to hold four L size photos with room to spare. It's a great size for wedding welcome boards, etc. It's durable and the acrylic is highly transparent, allowing for beautiful display. It's not comparable to 100-yen store products. I will wipe it before shipping, but please refrain from purchasing if you are looking for a brand new condition. The metal fittings originally had a glossy finish, but the gloss has faded with use. You can purchase the metal fittings separately at MUJI. Please understand that this item is stored at home and has been inspected by an amateur.