MEGA Rakuda Kami no Te Mask Developed by Dr. Nobuhiro Maruyama, MD, Maruyama Allergy Clinic Purchased in 2018 and used about twice. Please refrain from purchasing if you are concerned about long-term home storage. The instruction manual is not included, so this is the mask only. Product Details ● Size: [Main Body] Approximately 20 x 10.5 cm (adjustable) ● Materials: [Eye Mask] Surface: Polyester, Back: Cotton, Inner: Ceramic Charcoal Sheet [Static Electricity Removal Materials] 2 types of copper wire boards (2 each), 2 Black Eyes, 2 Corridors, 2 Ring Coils [Coating Agent] Epoxy Resin ● Retail Price: 16,500 yen ・ Those suffering from various fatigue and ailments ・ Those who want to regain energy and maintain health ・ For agile movement and mental clarity ・ Those who overuse their eyes with computers, etc. ・ Those who want to study efficiently for qualification exams or academics ・ Those who want to improve intuition According to the product description, the "Kami no Te Mask" removes static electricity accumulated in the upper cervical spine, allowing bioelectric currents to flow properly. As a result, it is said that the autonomic nervous system is regulated, and you can regain a brain that is always energetic and working hard, and a healthy and youthful body.