Complete 2 speaker foam surround installation kit Some of the models that use this foam include : Mark Levinson / Lexus 86160-0W250, 86160-0W290, 86160-0W430, 86160-0W440, 6760, 6838, and 6674 from Lexus LX470, SC430 and LS430. Same surrounds that professional reconers use; NOT cheap Chinese imitations!! Kit includes THE BEST QUALITY foam available and: 2 Premium American-made 4.25" Foam Surrounds (Enough for 2 Speakers) Step-by-step installation instructions 1 Bottle of premium professional-grade adhesive (Nitrile rubber) 1 Adhesive application brush Free voice coil shims available on request Foam Dimensions------ Kit 2A425B Outer Diameter 4.25" - 108mm Outer Roll Diameter 3.875" - 98mm Cone Diameter 3.0625" -78mm Inner Diameter 2.625" - 67mm Roll Width 0.375" - 10mm Inner Attachment Angled