Aftermarket Double 4.5" Dome Poly Dust Cap Kit These high-density poly dust caps gain even more rigidity when glued in place. Whether you've lost your existing dust caps, damaged them, or destroyed them to make a repair. This kit includes 2 - 4.5 in. "Dome-style" high-density poly dust caps that will handle the job on any speaker or subwoofer. Caps are meant to cover voice coils up to 3" in diameter. Kit includes: 2 - 4.5" Diameter Dome-style high-density poly dust caps. For voice coils up to 3" 1 Bottle of premium, professional-grade CRC rubber dust cap adhesive **Adhesive must cure minimum of 36 hours before running speaker. Fits Klipsch KLF-30 and many others. Perfect for woofers, subwoofers, and car audio. These parts are used by manufacturers, professional reconers, and sub builders for recone or repair.