They favour the active penetration, improve the circulation and relief the muscular pain with heat. Switch with 2 temperatures. Easy to clean. Inner part of PVC.

PVC

Apply a medium layer of foot mask, and then put on “Paraffin Plastic Linears Protector Bags” to keep it clean. Finally, put on “Thermal Booties” in order to active penetration, improve the circulation and relief the muscular pain with heat.