This is a High-shielding Electromagnetic Radiation Protection Fabric that Blocks Radiation and RFID Signals.  Measures a little over 20" x 21".  Whether you you sew it into a bag to use as a liner, wrap your phone, key fob, or other electronics in it, or put it on your tablet, it will block EMF.  We have tested it by placing a phone inside of it, then trying to call that phone from a different phone, and, although the material is thin, it works perfectly! 

This version is smooth.  We also have a textured version available while supplies last.  Other sizes are also available!  

These can be cut to size and used in all different manners. Lightweight but effective.  They come folded as shown.