Chest Sternum Brace Protector Support Adjustable Belt Shoulder Posture Corrector Back Vest Body for Men Women Around Ribs (L, Black)

FAST COOLING - It is High Thermal Conductivity Aluminum Made and Build-in High Speed 15000r/min Mute Fan. Very Helpful in Dispersing the Heat During Operating. Super Stability and Long Time Service above 30000hrs.