The Muff’l® Control Ring features foam rings mounted in drums with specially designed trays that hold them in place to provide partial dampening for Tom, Snare and Bass drums. Control Rings are easily mounted under the head on top of the bearing edge. A triple notched system secures pads without adhesives, even on bass drums with low tension. SPECS Triple notched system secures pads without adhesive Ideal for low tensions Easily mount under the head and on top of the bearing edge Great for low volume practice applications Special plastic trays hold the foam in place