Stressless Stella with Metal Legs and Balance Adapt Rocking Motion. 

Stressless® Stella is a soft and contemporary modular sofa that responds to your movements. The Stressless® BalanceAdapt™ system allows the sofa to respond to your natural movements by adjusting the seat as you move. Recline, lean forward, lie down or put your feet up and feel how the soft and generous seat adapts to your position. When the occasion calls for just a regular sofa, simply lock the function to stop the seat from moving. Available with different armrests and seat widths, an optional corner and custom headrest and footstool.