1)To change graphics, only need lift up the all four sided of frame
2)With the movable hook on the wall for easy to install any indoor places anytime
3)Minimum thickness: 15mm slimness
4)Light source available: LED
5)Frame color available: Silver white, black and any multiple color
6)Power supply available: DC 12V
7)Size available: A2/B2/B1 and so on, available in various size
A2: 590x440x15mm(Frame size)/560x410mm(Image size)
B2: 740x540x15mm(Frame size)/710x510mm(Image size)
B1: 1040x740x15mmFrame size)/1010x710mm(Image size)