The UHC30 from Microwave Vision Group is a Microwave Absorber with Absorption 1 to 40 dB, Frequency 80 MHz to 40 GHz, Power 0.75 to 1.5 kW, Thickness 11.81 Inch/300 mm, Thickness 11.81 Inch. Tags: Pyramid, Ultra Hybrid Absorber. More details for UHC30 can be seen below.