The six moxa Holder Moxa Roll Burner Box, made of wooden, is useful for treating larger areas such as the thigh, the lower back, and the abdomen. It’s designed for a hand-free operation and with safety in mind (no risk of falling ashes). These burner boxes are suitable for both traditional moxa roll and smokeless moxa roll. Two flexible metal strips hold the moxa roll in place and a fine metal mesh prevents moxa ash from escaping. The set is supplied with an elastic strap.