The AFR0000-03 from Concentric Technology Solutions is a Microwave Absorber with Frequency 1 to 18 GHz, Thickness 1 Inch/25.4 mm, Thickness 1 Inch, Thickness (mm) 25.4 mm, Operating Temperature -51 to 121 Degree C. Tags: Lossy Foam Absorber, Die Cut. More details for AFR0000-03 can be seen below.