Faraday Fabric Protection- Using our Copper Faraday Fabric, upgrade your health and get superior privacy protection. It's highly effective in blocking your wireless gadgets to guard you from potentially harmful frequencies. In this New Media Age, reestablishing comfort and security in your daily environment with the help of our Copper Faraday Fabric Military Grade- Military-grade Faraday fabric, the same material that the military and law enforcement use to block other wireless signals that come from cellphones, WiFi, Bluetooth, and GPS. 99% Blocking Efficiency- Our Faraday fabric uses metallic copper, metallic nickel composition, and Polyester fiber materials that efficiently block 99% of wireless frequencies such as electromagnetic field (EMF) and electromagnetic interference (EMI). This guards you against potentially harmful frequencies and possible data theft from your personal gadgets. Radiation Blocker- With its lightweight and stylish copper-color design, it's a great companion as a daily harmful frequencies blocker everywhere you go. Make sure not to leave any small opening for optimum results. DIY Enclosure- 1 yard copper faraday fabric, easily make your own Faraday cage, simply cut and sew to fit your smartphone, laptop, car keys, or cards, prevent information leakage and prevent information theft. Washing Instructions- Gentle hand wash(The faraday fabric will turn black when exposed to water, our suggestion is to try not to wash as much as possible). Naturally dry in the shade, do not expose to the sun. It's highly durable and corrosion-resistant to ensure long-lasting use.