The MF11-0003-00 from MAST Technologies is a Microwave Absorber with Frequency 6 to 40 GHz, Thickness 0.75 Inch/19.2 mm, Thickness 0.75 Inch, Thickness (mm) 19.2 mm, Operating Temperature -60 Degrees F to 250 Degrees F. Tags: Reticulated Foam Absorber. More details for MF11-0003-00 can be seen below.