Back point massage and relax instantly. The 3D airbags are divided into two traction groups. Massage by air pressure up and down. Soothe back muscles and relieve fatigue. Fit hip finger press soothe muscle nerves. Two groups of airbags are charged and deflated ballooned and dropped, and the force point is changed. Enjoy simulated human massage, care for the tail vertebrae.1.The airbag adjusts to its own hardness and softness. Degree, full support, comprehensive decompression. Recommended for use by drivers. 2.Two adjacent sets of airbags are charged and deflated alternately. Bulge and fall, reaching cyclic fluctuations. Massage to relieve body aches and pains. Recommended for copilot.There are no mechanical parts in the massage area. The air bag is inflated and pressurized, and the shoulder neck, waist and hip are pressed at a fixed point. Fit the curve of head and neck. In driving, the head does not fall flat. Airbag pressure relieves shoulder and neck pain. The height can be adjusted freely. Head fixed in 3 directions, depending on height. Easily adjust the height to find the best height for you. Deep trough design fresh and breathable. Hip contact seat damp and muggy. Cushion air bag up to about 4cm. Deep trough gap is moderate, enhance the wind. Bring cooling to the body. Have fun driving.