Heated Bian Stone Mini Massage Plate 2nd version - AiyishengThe MoxaMoxa Heated Bian Stone Mini Massage Plate (2nd Version) by Aiyisheng is the most portable Bian stone tool in the catalogue just 80g and 9 cm wide, light enough to slip into a handbag and small enough to take to the office, gym, or while travelling. Despite its size, it's made from genuine Bian stone (the rare TCM stone that emits ultrasound pulsations, far infrared rays, and negative ions, with 40+ trace minerals) and works as three tools in