EASY TO USE - These stickers can be applied to phones, laptops, tablets, PCs, TVs, and other small electronic devices. Simply place a sticker on the back of your phone or on the surface of your device. EFFECTIVENESS - Each sticker is designed to help reduce exposure to EMF/EMR emitted by electronic devices. WHAT IT DOES - Common electronic devices emit electromagnetic frequencies (EMF) and electromagnetic radiation (EMR). This sticker is designed to help absorb and neutralize certain ions associated with EMF/EMR exposure. SLIM SIZE - The thin and lightweight design adds no noticeable weight and allows easy application to phones and other devices. Portable and convenient for everyday use. Helps protect you and your family from radiation. Type: EMF Protection Sticker Color: Silver Material: Silicone Size: Diameter 28mm Package Contents: 20 x Sticker Note: Light and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.