Vibration Isolation

I came across these the other day and for the price I couldn't pass up trying them.  I've spent as much as $75 each for vibration isolation pucks and seen pucks going as high as $900 each.  I have to say that these $0.62 wonders work as well as anything I've tried and much better than the cork ones I've seen advertised for $6-$7 each.  Even though my VPI turntable has factory cones and feet I did notice an improvement in smoothness and clarity.  Too few bargains in high end audio not to share. I now have these under my monoblock amps, turntable and turntable motor.  Hope this helps someone looking for an inexpensive way to dampen vibration.
https://www.supplyhouse.com/DiversiTech-MP-2E-EVA-Anti-Vibration-Pad-2-x-2-x-7-8