Complete 1 speaker foam surround installation kit Some of the models that use this foam include : Radio Shack Realistic Mach 2, 40-3032, 403032, 40 3032, AWF-00-004 and others that match the measurements below Mach 1 and Mach 2 have two distinctly different foams. This one is made specifically for the Mach 2. Same surrounds that professional reconers use; NOT cheap Chinese imitations! Kit includes THE BEST QUALITY foam available. 1 Premium American-made 15" Foam Surround (Enough for 1 Speaker) Step-by-step installation instructions 1 Bottle of premium professional-grade adhesive (Nitrile rubber) 1 Adhesive application brush Foam Dimensions------ Kit 1RM2 Outer Diameter 14.875" - 378mm Outer Roll Diameter 13.375" - 340mm Cone Diameter 11.75" - 298mm Inner Diameter 10.75" - 273mm Roll Width 7/8" - 22mm Inner Attachment Angled