Cuts down on vibrations
592050
Difficult to get in but man do they help with vibes
3101719
I bought a whole set of these mutes and I'm pretty satisfied. They definitely do soften both noise and vibration significantly, although claims of 90% reduction are probably stretching it a bit. Basically they are just neoprene pads slightly thicker than a wetsuit. They do affect rebound and tone and the mutes for Hi-Hat and Ride totally kill the tone and feel (but do reduce volume significantly).  They are held in place by the rim on the drum head (with no adhesive) and the  fit is generally excellent, however, I found that on my smaller tome (6 & 8) the mats were more likely to come loose. I found the bass drum mute was easy to fit and as effective as the others. The keyhole shaped crash mutes are not as effective but still offer a large reduction in noise.

I read a couple of reviews that mentioned a strong odor but I did not notice this. Overall these do a good job and I am happy with them
657460
These are fantastic.  We have a laundry room on our 3rd floor and are using front loading machines.  We had significant vibration ( yes they are level ).
After installing the pads the vibration was reduced by about 95%.  Well worth the money.
548412
These are perfect under a vertical air compressor.  Drilled through them and had to put under 2 of them using parts of an extra pad for a 3 legged mount.  They cut down on the noise.
2502830
Eliminates that annoying buffeting that I was getting from the standard windshield design. You can hear the radio from your external speakers.
2913921
Dampers did reduce both noise and vibration.  Recommend you also lubricate the track.
685621
Provides absolutely no suppression of vibrations. I tested iPhone vibration, drill vibration and drop impact 4 blocks thick. It almost amplified the vibration somehow. Not only the vibration but when amplified it sort of creates a sound along with it.
I would not buy these and I suggest staying far away.
2150341
Excellent product. Reduced vibration and noise. I only put two on the back with new KYB struts. The front gets done next week.
3793618
Very pleased with this item works as described. Would recommend this to my friends. No more rattling or unnecessary noise
4621773
Used it with a pruning blade to clean up a couple of trees. A lot easier to use rather than unwinding my 100 foot electrical cord and getting tangled in the bushes. There is a lot of vibration so I wear work gloves.
3786680
Great for cutting down the hum when using a dimmer.  They're not completely silent, but they're close.
1233959
I was looking for a longer metal cutting blade to cut copper pipes. This one does the job but there is a LOT more vibration. Makes sense if you think about how the tool works.
587401
Works well.  I have it resting on the dash so there is minimum vibration.
829538
These little squares did lessen the vibration sounds from a large air purifier. I will buy them again for similar uses.
2104435
these gloves work quite well when I am using my chops saw they cut down on the vibrations a great deal
1104015
The limb silencers were very easy to install and look great on my Mathews Monster MR7.  I have noticed there has been a reduction in vibration in my bow.
4923758
Works as advertised. Used to quiet down a creaking bottom bracket bearing that was moving slightly inside its bearing cup.