3D Spine Support, Effectively Relieve Fatigue Sitting for a long time will cause tremendous pressure on the spine, which accumulates for a long time, which will cause terrible changes in our body such as hunchback or curvature of the spine. The 3D spine support, coupled with soft padding, can protect our spine at any time and relieve the fatigue caused by long-term office work or games. Innovative Implant USB Electric Massager The included adjustable massage lumbar pillow, playing games and relaxing massage at the same time, it is a massage experience anytime, anywhere. Thickened and high-density lumbar pads can correct sitting posture while effectively relieving the fatigue of sedentary sitting and protecting our spine health. 90° to 180°: Work, Reading, Watching movie and Taking a rest 360 Degree Rotating Wheels After 100,000 friction tests to ensure the durability and sturdiness of the wheels. Sitting moving is also very free and smooth. Overall Dimension:21.65’’ x 20.47’’x 50’’ (L x W x H) Weight Capacity:300 LBS