This unique contemporary drop-in tub design features internal armrests and a gently sloped lumbar support that cradles your body, providing maximum comfort to your bathing experience. The bubble massage air system delivers warm air bubbles to caress your entire body. The air system takes surrounding air, heats it, and infuses it into the bath, relaxing muscles and leaving you feeling refreshed. Customize the experience by adjusting the intensity from a soothing effervescent touch to a more spirited massage.