Packing list: 1x back massager Specifications: Material: plastic Colour: black, blue, red, green Adjustable level: 3 level Adjustable Height: 7 / 9 / 11cm First level: lighter, 7cm above the ground, suitable for beginners Second level: moderate intensity, 9cm from the ground, suitable for adaptation Third level: Strong intensity, 11cm from the ground, suitable for long-term use Massage points: 18 Load: 200 kg Size: 38x20x10cm Features: The Back Massage is designed to make stretching your back easy, safe, affortable and enjoyable. Easy to use home treatment for spine problems. Preventive care device for your spine. Multi-level adjustment arch for greater reach. Compact in design & portable - can fit nicely in luggage. High quality & durable materials It is being used to help: Relieve chronic back pain Correct postural imbalances Restore the natural curvature of the back Improve flexibility in shoulder and back muscle.