This is a High-shielding Electromagnetic Radiation Protection Fabric that Blocks Radiation and RFID Signals.  Measures a little over 58.5" x 39".  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 inside your pillow case, 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 smooth versions available while supplies last.  Other sizes are also available!  Lightweight but effective.  These come in rolls, like wrapping paper does.