of neoprene. (enough for three speakers)
These gaskets will fit on the front of these JBL speakers:
122 (A&1), 126, 128(H,H-1), 129(H), 2214(H)
(These will fit other 12" speakers with similar frame).
On Oct-15-07 at 10:22:16 PDT, seller added the following information:These gaskets are 7/16" wide X 3/16" thick.