STAR tips are premium silicone eartips designed to fit Westone universal in ear monitors and earphones. Westone"s patented STAR design feature multiple STAR flex zones that allow the tip to conform to your individual ear anatomy. High purity medical grade silicone construction delivers durability and biocompatibility. It"s the perfect matieral for all day comfort and fit in a universal in ear monitor tip. STAR earphone tips are color coded based on measurements. Our extended five tip size range was developed by profiling over 15 million ears in our EarVault database which contains anatomical 3D scans of the human ear. This STAR tip fit kit allows you to try various sizes to see which is most comfortable for you. STAR tips allow an individual fit for excellent retention, comfort and sound isolation.