Material: it made by pure copper material multilayer design can endure high temperature and Durability strong Portable Flexible: sleeping,sitting ,working can anywhere use , Special design: Closed recirculated design gives the effect of focusing moxa heat on the box ,prevent the moxa stick from dropping Moxa Box: It is a tool specially made of,So it is also called warm canister moxibustion,is a tool in the treatment of warm moxibustion.