Values (Shore A and ASKER C scales) provided by Diversitech indicate the black rubber and blue "foam" materials used to construct the 2x2" EVA MP2E pads are similar in hardness to Herbie's Audio Lab Tenderfeet. For details see the 5:45PM 2/20/19 post at the thread here:
https://forum.audiogon.com/discussions/vibration-isolation-2
https://forum.audiogon.com/discussions/vibration-isolation-2