1.far infrared, ion, bio magnetic, bian stone 2.design according to ... cleaning technologyfilings: environmental EPS and far infrared functional cottonEfficacies:Perfect support head and neck and stretch deformed cervical vertebra ... sleeping quality, sound, comfortable, healthyRelax muscle stiffness and overall fatigueApplication Scope:cervical vertebra diseaseinsomnia, dizzinessforgetfulness caused ...