Experience the most life like massage from Osaki. The newly enhanced 4D L-track massage is designed to massage wider, deeper, and more rhythmically than the conventional massage rollers. The 4D massage allows another experience with account for the speedand rhythm of the massage. The Osaki OS-Pro Maestro allows for 8 different levels of adjustment for the 4D massage. With the variety of adjustment levels, the user can customize the massage to suit their personal preferences. With the Maestro massage chair, you will have complete control of your relaxation experience. Massages are adjustable with 8 4D adjustments, 5 Strength adjustments, 5 Intensity adjustments, and 5 speed adjustments for the massage rollers.