Hendrix Drums &ndash; Sleeved Nylon Washers for Tension Rods - Black - 100 Pack SMOOTHER TUNING - Produce smoother and more accurate tuning. PROTECT YOUR CHROME - Eliminate all metal on metal contact. ENHANCE HARDWARE LONGEVITY - Protects chrome on hoops and tension rods. STAY IN TUNE LONGER - Reduce backing out of tension rods so drums stay in tune longer. ELIMINATE RATTLE - Enables lower tuning without any "rod rattle".