The MF32-0001-00 from MAST Technologies is a Microwave Absorber with Frequency 10 to 40 GHz, Thickness 1.5 Inch/38.4 mm, Thickness 1.5 Inch, Thickness (mm) 38.4 mm, Operating Temperature -60 Degrees F to 250 Degrees F. Tags: Convoluted Foam Absorber. More details for MF32-0001-00 can be seen below.