Girdle with self-heating belt by Dr Thermo. Product designed with magnets and tourmaline mineral that covers the inner part. Product developed to relieve back pain and discomfort comfortably and effectively. Moisten the inner back of the girdle with water and apply on the lumbar area directly on the skin, thanks to the tourmaline mineral and magnets after about 20 minutes it generates heat and intensifies, the amount of water influences the generation of heat. Varying in more or less sprays or humidity you can adapt the generation of heat to your particular thermal sensation.Product presented in size XL. *For hygienic reasons, we do not accept returns of this product once opened. It can only be returned if it retains the seal, and provided that the box shows no signs of having been tampered with.