I've read this twaek at AudioKarma's forum and I tried...
the purpose is to reduce resonance and vibrations from the tonearm.
wrapped the wand with plumber's teflon...it will cost almost nothing and will not ruin
anything in your turntable. Others use shrinkable tubes but i find teflon lighter than that.
I got a favorable result... try it to find out
if there's none in your ears then you can easily remove it.