4.5" Poly Dome Speaker/Subwoofer Dust Cap Kit 1 - 4.5" diameter dome-style high-density poly dust cap - for voice coils up to 3" 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 rubber adhesive FREE phone support and FREE shipping within the U.S.