The MT70-100 from Withwave is a Microwave Absorber with Frequency DC to 18 GHz, Thickness 0.04 Inch/1 mm, Thickness 0.04 Inch, Thickness (mm) 1 mm, Resistance 1 x 10^6 Ohms. Tags: Cavity Resonance Absorber. More details for MT70-100 can be seen below.