Originally Posted by Monument Man
i watched the dude at the LBS drop regular bars on teh floor. they went "dinggggg" and vibrated all over the place. then he put these into the ends, dropped them again and it was like "thud" - no vibrations. call me a sucker but this guy really sold me!
If you stuff a couple of Kleenex's in each end and drop the bar on the floor you will get the same damping effect.