Unless you had a reasonably wild upbringing it's fair to assume that you've never thrown a brick. Well now's the time to put that right, or wrong depending on which way you look at things.
The Sound Brick is made from foam, a fake brick, so should not break anything. It will however make the shattering noise of glass when it's thrown. So less destruction than a real brick but the same satisfaction of hitting the target.
Fake Bricks good for throwing, bad for house building.
The Sound Brick makes the sound of shattering glass when it hits its target.