Want to add more photos of your kids or grand kids? Here is a prefect addition to your 3 piece train picture frame (sold separately here). Each additional cabin car photo frame simply clicks on behind the other to make a train as long as you desire. Holds 1.75 x 2.5 (in inches) picture / photo. NOTE: Due to the manufacturing process the add-on train cabin cars photo frame may slightly vary than the ones comes with the 3-pc set. Pewter finish varies very little bit but not much.