The PFP-60LC from Riken Environmental System is a Microwave Absorber with Frequency 30 MHz to 40 GHz, Thickness 23.62 Inch/600 mm, Thickness 23.62 Inch, Thickness (mm) 600 mm, Weight 4.2 kg. Tags: Ferrite, Pyramid. More details for PFP-60LC can be seen below.