The MF11-0002-00 from MAST Technologies is a Microwave Absorber with Frequency 8 to 40 GHz, Thickness 0.5 Inch/12.8 mm, Thickness 0.5 Inch, Thickness (mm) 12.8 mm, Operating Temperature -60 Degrees F to 250 Degrees F. Tags: Reticulated Foam Absorber. More details for MF11-0002-00 can be seen below.