Finished in Koskin synthetic leather, this holster offers unparalleled convenience and elegance.Features the BlackBerry sleep mode function so your BlackBerry will shut of it's screen which helps maximize battery life when it is in the case.Built-in grooves constructed of hard plastic run along the front and back insides of the case to protect the trackball. You can choose different notification settings (ring, vibrate or both) based on whether your device is in or out of this handy carrying case. Case has indentations long the insides of the case which protects the trackball from damage or accidental pressing.