Abstract: A new and improved sound damping device to improve the resonance of the shells of drums comprising, a drum shell formed of a rigid material in a cylindrical configuration, a drum head formed of a resonating member extending over the ends of the drum shell, a strip of foam material in a circular configuration, the cross section of the material including long parallel sides positionable in a vertical orientation and short parallel end edges extending cylindrically in a horizontal orientation, means to secure the material with the radially exterior long face in contact with the interior surface of the drum shell with the lower short edge of the material line in the plane of the lower circular edge of the drum shell in contact with the lower drum head.