Optimus / Realistic 15" Speaker Foam Surround Repair Kit - 15 Inch Fits Optimus 3807, 3808, 3809, 3811, 40-1008 40-1125, 40-1131, 40-1301, AWF-00-004, Mach3, Optimus 3, Optimus 15, Optimus 1000, Optimus 1050, Optimus 990, SP5198, Radio Shack and others that match the measurements Same surrounds that professional reconers use; not cheap Chinese imitations! Complete 2 speaker foam surround installation kit - 15 inch Easy to follow step-by-step installation instructions and videos FREE phone support at 1-800-397-9575 and FREE shipping within the U.S.