... therapy 3. Cool in summer and warm in winter Tourmaline far infrared Silkworm quilt MaterialAnti-bacterial fiber and 100% silkMagnet80 pcs are ... of Masks is safe, non-toxic, no skin irritation2) Resist bacteria for long-terms, reusable, have good washing endurance.3) ... tract.5) Nano Antimicrobial Materials have function of destruction on bacteria.Suggestion Caution:1. Can not be washed in Water, Please ...