About this item Perfect MatchFit WF-1000XM5 WF-1000XM4, compatible with WF WI XBA MDR in-ear series. Perfect Design1:1 designed for WF-1000XM5, internal with filter screen, as soft and comfortable as the original, fit in charging case, works with WF-1000XM5, WF-1000XM4, WF-1000XM3, WF-C500, Linkbuds S and more in-ear buds. New Type MaterialThis memory foam with latest polyurethane foam, the ear tips for WF-1000XM5 earbud, more softer and comfortable than other ordinary foam materials. Comfortable Anti-SlipThe WF-1000XM5 foam tips are very soft, anti-slip, providing 24 hours of comfort, suitable for long wearing and exercise. Enhance Sound QualityAfter many tests and designs, the memory foam tips noise isolation offers superior audio experience, enhanced bass, and good seal to block out external noise. Dimensions: 4 x 3 x 0.4 inches.