Protective Phone Stickers: The package contains 12 EMF stickers for mobile phones, laptops, computers and other electronic devices. These EMF protection stickers are designed to reduce exposure to harmful electromagnetic fields, and the mobile phone EMF blockers are easy to apply and will not interfere with device functions. Easy to use: The phone radiation blockers have a diameter of 28mm/1.1 inches.The stickers are easy to apply and suitable for any electronic device. Simple installation: Just peel off and stick to your device without affecting the function. Wide application: These mobile phone stickers are powerful and can be applied to various devices such as tablets, computers, air conditioners, refrigerators, microwave ovens, printers, washing machines, etc. Lightweight: They are lightweight and easy to carry, and will not add burden to the device. They seem to have an identity tag on your electronic device, which is easy to manage and carry. We are committed to better quality and service, if you have any questions about our products, please feel free to contact us.