Pet's cremains are installed through removable bottom which is secured with screws, providing tamper resistant protection. Note: The Small Urn comes automatically with a 2.5" x 3.5" vertical photo-holder, the Medium Urn comes with a 3.5" x 5.0" vertical photo-holder and the Large Urn comes with a 4.0" x 6.0" vertical photo-holder. You do not send us the photograph. The photo-holder is attached magnetically and is easy to pop-off, slide in you favorite photograph, and re-attach to the urn. We use the magnet to allow slight adjustments in the positioning of the photo-holder to better fit your visual preferences. This will also allow the photo to be placed into the holder without the need to open the urn.