This is a High-shielding Electromagnetic Radiation Protection Fabric that Blocks Radiation and RFID Signals.  Measures a little over 20" x 21.5".  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 lightly textured.  We also have non-textured / smooth versions available while supplies last. 

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