Floating Floor Pad.
 
The dBA FP-Rubber is a anti-vibration elastic pad. It can be used as a point support/mount for equipments like air-compressors, pumps or generators to prevent their working vibrational noise from passing to the surrounding structures. In construction environments, it is used as a decoupler for floating floors. They can be installed in multiple layers with the use of steel plate in-between, in order to reduce the natural frequency down to 4 Hz.