Protec's replacement cork for mutes can be used on most makes and models of straight and cup mutes! Will stick to wood, aluminum, carbon fiber, and more!
 
EVA foam: Flexible and crack resistant.
Contoured backside: Curved design ensures excellent contact.
Self-adhesive: Just peel and stick! No messing with glue. 
 
Approximate Dimensions: 1.8 x 0.4 x 0.25"; 46 x 10.2 x 6mm