Designed for peace of mind and safety, the tip is thin with 0. 1 inch (3 mm) in diameter, reducing strain on your ears. How" name="description"/> Designed for peace of mind and safety, the tip is thin with 0. 1 inch (3 mm) in diameter, reducing strain on your ears. How" property="og:description"/> Designed for peace of mind and safety, the tip is thin with 0. 1 inch (3 mm) in diameter, reducing strain on your ears. How" name="twitter:description"/>