Single piece foam surround(enough for 1 speaker) Some of the models that use this foam include :Infinity 902-2046, 902-5051, 902-7345, 2000A, 87060CU-01FW 5.8, Composition Overture 1 BLK, Composition Quadrapole Surrounds (PFR), ERS-420, ERS420, Kappa CS-1A, Kappa, Kappa 32, (Auto), M100-3, Prelude P-FR (Composition), QLS, Quantum Line Source, RS-400, RS400, RS-7B, RS7B, SL Micro Satellites, SM-112, SM112, SM-115, SM115, Sterling TS System and others that match the measurements below Same surrounds that professional reconers use; NOT cheap Chinese imitations! THE BEST QUALITY foam available.This is the foam only. Complete repair kits are available in our DIY Foam Surround Repair Kits category. Foam Dimensions------ Kit BP4-Inf Outer Diameter 3.88" - 98mm Outer Roll Diameter 3.56" - 90mm Cone Diameter 2.92" - 74mm Inner Diameter 2.6" - 66mm Roll Width 5/16" - 8mm Inner Attachment Angled
