Complete 2 speaker foam surround installation kit Some of the models that use this foam include :Cerwin Vega ATW-15, AT15, AT100, 380SE, VS150 and others that match the measurements shownSame double-sided surrounds that we use in our professional repair facility; NOT cheap Chinese copies!! Kit includes: - 2 Premium American-made Foam Surrounds (Enough for 2 speakers)- 2 CV logo felt dust caps - 4.5" felt- Step-by-step installation instructions - (Also see video below)- 1 Bottle of premium professional-grade adhesive (Solvent-based)- 1 Adhesive application brush Kit 2CV15A-comp Outer Diameter 14.5" - 368mm Outer Roll Diameter 13.625" - 346mm Cone Diameter 12.25" - 311mm Inner Diameter 11.5" - 292mm Roll Width 3/4" - 19mm Inner Attachment Angled How To Center Your Voice Coil Using Smartphone or Tablet