Westone Star Silicone Replacement Eartips - 5 Pair Pack, 12mm Diameter X 11mm Length COMPATIBLE WITH ALL WESTONE IEMs: Westone's Star Silicone and True-Fit Foam replaceable in-ear monitor eartips are the best on the market today and are compatible with all Westone's IEMs. 12MM DIAMETER X 11MM LENGTH: Designed for average size ear canals, these silicone tips provide superior comfort and fit and impressive acoustic isolation in a lightweight and flexible eartips. As with all Westone ear pieces, ensuring you select the proper size will give you the best experience, comfort and noise isolation. TRY EVERY SIZE OF WESTONE'S FOAM AND SILICONE EAR PIECES: Included are all 5 sizes of both our Star Silicone Eartips and True-Fit Foam Eartips. This allows you to find the best possible fit in the style that gives you the noise isolation and comfort level you're looking for with your in-ear monitors. 5 PAIRS OF REPLACEABLE EARTIPS: With 5 pairs of our replaceable eartips, you'll never have to worry when you lose them before a show or when your friends ask you for a pair. 60 YEARS OF DESIGNING CUSTOM EAR PIECES: Our Silicone Star Tips use all the innovations and expertise that Westone has developed in almost 60 years of designing and manufacturing products for the human ear. These replaceable eartips enhance the performance in-ear earphones by ensuring superior noise isolation, and a superb fit.