Tall Boxes are objects in SAS: Zombie Assault 4. They cannot be pushed around nor shot through. Tall Boxes seem to be stacks of shallow boxes. They can be destroyed by all attacks. If hit by a special non-physical attack, in the middle of the box there will be a colored circle either green (for poison) or orange (for fire); shock weapons will arc toward it, making a smaller shock bubble effect and temporarily flashing white.