The PFP-100LC from Riken Environmental System is a Microwave Absorber with Frequency 30 MHz to 40 GHz, Thickness 39.37 Inch/1000 mm, Thickness 39.37 Inch, Thickness (mm) 1000 mm, Weight 2 kg. Tags: Ferrite, Pyramid. More details for PFP-100LC can be seen below.