Complete 2 speaker Infinity foam surround installation kit Some of the models that use this foam include : Infinity SM-150, SM-152, SM-155 This is the BEST Infinity SM-15 kit available! Same surrounds that professional reconers use; NOT cheap Chinese imitations!! Kit includes THE BEST QUALITY foam available. 2 Premium American-made 15" Infinity Foam Surrounds (Enough for 2 Speakers) 2 Original 4.375" foam-over-screen EMBOSSED Infinity logo dust caps Step-by-step installation instructions 1 Bottle of premium professional-grade adhesive (Nitrile rubber) 1 Bottle of premium dust cap adhesive 2 Adhesive application brushes Foam Dimensions------ Kit 2INF15-comp Outer Diameter 14.29" - 363mm Outer Roll Diameter 13.53" - 344mm Cone Diameter 12.15" - 309mm Inner Diameter 11.75" - 298mm Roll Width 3/4" - 19mm Inner Attachment Angled