PRODUCT DETAILS 

moxibustion salt heat pack bag acupuncture massage herb bag cervical knee therapy massage heatpack

you can use microwave heat or steamer heat it  

simple type size 23*18cm ,inside : herb ,salt ,Tourmaline stone

standard type 25*18cm  inside : herb ,salt ,Tourmaline stone

long size type 65*21cm inside : herb ,salt ,Tourmaline stone