Great for treating large areas at once! This 140mm x 96mm x 96mm wooden box has a metal, grated tray inside, perfect for holding moxa rolls or loose moxa. Two metal sliding doors on each side allow for ventilation of smoke. Just open the top of the unit, insert and light the moxa, and place the box on the desired area. The heat filters through the grated tray, and provides for comfortable moxa treatment. Tray removes easily for cleaning, and has clips for securing moxa rolls.