Complete 2 speaker foam surround installation kitSome of the models that use this foam include : Advent 1, Advent 2, Advent 3, Advent 4, 2004, 4002, 5000, 5002, 5012, 2201474, 2208725 (10-990-536), 2208303, 2208917, 10990422, 10990536, 10990605, 25th Anniversary, A2, A3, A4, Anniversary, New Large Advent, NLA, NLA's, Powered Advent, Advent Utility, U3, U4 and others that match the measurements shownIn a recessed metal frame, these foams are mounted right side up. On woofers that have a masonite frame or masonite ring, these foams mount upside down. Same American-made 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)- Step-by-step installation instructions - (Also see video below)- 1 Bottle of premium professional-grade adhesive (Solvent-based)- 1 Adhesive application brush Kit 2ADV10m Outer Diameter 9.25" - 235mm Outer Roll Diameter 8.875" - 225mm Cone Diameter 7.5" - 191mm Inner Diameter 7.125" - 181mm Roll Width 5/8" - 16mm Inner Attachment Flat How To Center Your Voice Coil Using Smartphone or Tablet