Red Bean(Vigna angularis) and Mung Bean(Vigna radiata) are used.Heating time in microwave: 2min.(500W), 1min.50sec.(600W), 1min.30sec.(700W) More than 700W range should not be used.Steam vapor of the beans will give gradually give heat to neck and shoulder.It will give good effect for about 25 minutes.It can be repeatedly used up to around 250 times.
