A waist pad three areas. Only adjustable with the region air sac communication, so the air flow between the sac can change with the posture circulation flow. 1. Unique shallow trough system. High-end waist pad, universal application, although expensive but value! Bid farewell to the traditional waist pad sticking mode. 2. Strict selection of good material, both inside and outside excellent.Anti-bacterial, anti-wrinkle, no depilation, no pilling, anti-slip. The fabric adopts imported high quality Lycra. 3. Eight earlobes, two straps. Bid farewell to the market waist pad single binding method, applicable to all kinds of chai. Easy to use and practical.1. Left and right golden triangle, anti-tilt function is very suitable for drivers. 2.Golden triangle up and down. Anti-sliding is very suitable for sedentary work and students. 3. Increase or decrease gas thickness at will. Buy lumbar cushion is for comfortable, be about to choose can follow one's heart adjust.Convection air bag partial pressure technology -- the core of our JFT decompression brand. Principle of convection partial pressure: air sac , pressure, gas inside the sac from point to surface rapidly diffusing, producing "antigravity" with uniform partial pressure.The effect, dispersing 80% of the pressure on the spine, is effective spine protector to soothe your back. The original brand the multinational patent.