Realistic Mach II, III Speaker Foam Surround Repair Kit - Mach 2, Mach 3 Some of the models that use this foam include: Radio Shack Realistic Mach 2, Mach 3, 40-3032, 403032, 40 3032, AWF-00-004 and others that match the measurements above. Mach 1 and Mach 2/ Mach 3 have distinctly different foams. This one is made specifically for the Mach 2 and Mach 3. Complete 1 speaker foam surround installation kit - 15 inch Easy to follow step-by-step installation instructions and videos Premium professional-grade speaker adhesives FREE phone support at 1-800-397-9575 and FREE shipping within the U.S.