Infinity 3.25" Speaker Foam Surround - A325Single piece foam surround (Enough for 1 speaker) Some of the models that use this foam include : Infinity 902 2652, RS 4000, RS 4000A, RS 5000 (midrange), RS 8, 87060CU 01DW, Infinitesimal Micro, Infinitesimal Micro II, Minuette, RS 32 Kappa and others that match the measurements below Same surrounds that professional reconers use; THE BEST QUALITY foam available! This is the foam only. Complete repair kits are available in our DIY Foam Surround