2025 Model Electromagnetic Wave Prevention Aluminum Cap - 1 piece Purchased from a friend. I bought several, but I found one was more than enough to feel the effects, so I am selling the remaining new ones. For sleeping at night or a quick nap. Incorporating it during times when you want to relax can calm both your mind and body, allowing you to relax more deeply! You can also put items inside to cut off electromagnetic waves! It's made of rubber, so it can be used by children to seniors! Let's start taking measures against electromagnetic waves! ● Did you know that electromagnetic waves are said to be emitted from many electrical appliances? Prolonged exposure to electromagnetic waves is a concern for damage to the living environment. It is expected that by alleviating harmful electromagnetic wave stress, the brain will be activated, the autonomic nervous system will be regulated, and both mind and body will improve. 5G Electromagnetic wave countermeasures Electromagnetic wave shielding Electromagnetic wave prevention Gang stalking Aluminum Electromagnetic wave cut Zero magnetic field Technology crime