Remo Hardware Package, Bass Muffle Strip, Black, For 22" Diameter Drum Revolutionary new muffling system gives complete bass drum control to the player The system is available in three sizes: 5" x 27" (for 22" and larger bass drums); 4" x 20" (for 20" bass drums); and 3" x 14" (for 18" bass drums) Each one can be used alone or in conjunction with other sizes