Sound control rings are used to 'damp down' or 'muffle' a drums sound instead of using all that nasty tape/paper/material which looks pants and marks your heads too. They do the same job as the more expensive branded ones, but at a lower price. Simply place the ring on the drum head and play, then remove when not needed, job done! This sale is for a 4 pack in sizes: 12" snare + 14", 14", 14" toms (although any ring can be used on any drum of the right size).