The EFD-SR-12 is designed to replace the rubber side rim of the EF Note EFD-S12P and EFD-S1250 snare drum pads. This side rim supports only the 12" snare pads.
Note: please contact EF Note and confirm this replacement is needed prior to purchasing, as the side rim can, in some rare instances, be merely out of alignment and snapped back into place.