This EMF Radiation Protection Universal Phone Shield blocks ELF and RF radiation up to 90 GHz. Its Ultra Armor+® Shielding Technology ensures you stay protected when using your device. Choose from two sizes to fit most phones, including all iPhone and Samsung models. The slim, lightweight design easily slides into your pocket or bag without adding bulk. Store your credit cards or IDs in two built-in RFID-blocking pockets, enhancing your personal cybersecurity by protecting your card information from malicious signals. Designed for ease of access, place the cell phone radiation shield on your screen when talking or on the back when texting. Attach it to your phone with the elastic bands to reduce EMF exposure while on-the-go, making sure to keep the shield in between your phone and your body. Material: Black vegan leather exterior Ultra Armor+® Shielding interior (0-90 GHz) Dimensions: Small: 6" x 3" x 0.125" Large: 6.5" x 3.5" x 0.125" Packaging dimensions: 7" x 5" x 0.1"