Great for police departments, public safety, corporate security, casinos and film crews. Replaces the typical mushroom ear-tip on most clear tube earpieces. No gluing or cutting necessary. Slides directly onto the clear tube elbow. Holds firmly in the ear and is designed for long lasting comfort. Allows user to hear ambient noises as well as radio transmissions. Discreet, low profile and so comfortable they can be worn for extended periods of time. This is a must have for comfort and safety.