6.5" Inverted Poly Speaker/Subwoofer Dust Cap Kit 1 - 6.5" diameter inverted-style high-density poly dust cap - for voice coils up to 4.5" Perfect for woofers, subwoofers, and car audio These parts are used by manufacturers, professional reconers, and sub builders for recone or repair Includes 1 bottle of our professional-grade CRC adhesive FREE phone support and FREE shipping within the U.S.