Kit includes THE BEST QUALITY foam available: 2 Premium American-made Foam Surrounds (Enough for 2 Speakers) Step-by-step installation instructions 1 Bottle of premium professional-grade adhesive (Solvent-based) 1 Adhesive application brush FREE shims available on request Foam Dimensions - Kit - 2BOS525 Outer Diameter - 5" - 127mm Outer Roll Diameter - 4.6" - 117mm Cone Diameter - 3.875" - 98mm Inner Diameter - 3.6" - 91mm Inner Attachment - Direct-Angle SEE COMPATIBLE MODELS ABOVE