The MT65-JT from Dutch Microwave Absorber Solutions is a Microwave Absorber with Frequency 450 MHz to 110 GHz, Attenuation -30 dB (reflectivity), Thickness 25.5 Inches (Height), Thickness (mm) 650 mm, Weight 11.6 Kg. Tags: Pyramid. More details for MT65-JT can be seen below.