These come in two colors, white and black. The white one looks a little more durable so I use that as my primary right foot pad, though I am not sure since I've only owned these for about two weeks. They do not alter the sound or quality of your bass drum at all. These will extend the lifetime of your head. (An especially good investment for more expensive heads, like the Aquarian Superkick II.) Overall, I've been pretty satisfied.

I've been drumming for 36 years,about 22 years ago I had to buy a bass drum head and the guy at the drum shop talked me into buying one. He told me it would make the head more responsive and it did.

I had these on my bass drums and the head is over a year old and still not broken. I do alot of double bass drumming so without these patches my drum heads would've been broke a long time ago. THEY WORK! Plus they sound cool on your bass drum. :)

These are the best impact pads there are. I use them on my powerstroke 3 heads.(the best kick drum heads) I play a lot and I play really fast. These seem to last forever. I put one on the head in the exact center and forgot about it, by now I see no need to check on it. It hasn't gone anywhere.(a year now) Every drummer should use this.

I just got a new Pearl Masters MCX set and it came with this. After I tuned everything I realized my floor tom really rang out. So I thought about it and I said to myself "I use felt beaters and my floor tom needs muffling. I should use that thingy that came with the bass drum." That was the first thing that came to mind and it turned out great. It muffled the sound and it gave it the punch I like.