BlackBerry Leather Swivel Holsters are outfitted with a swivel clip to adjust the holster for maximum wearing comfort. The case also includes special indentations that snuggly protect your SmartPhone's trackball. A durable leather exterior protects the SmartPhone. Your BlackBerry SmartPhone works with the custom designed BlackBerry case to maximize battery life without missing a message or call, and allows users to create personalized in-holster profile settings.