New in box. The On-Stage CW-3 2.5 lb. Counterweight is a reliable and durable accessory designed for microphone stands and booms. With the brand's reputation for quality, this counterweight is a must-have for any professional audio setup. The unit type is specified in lbs, making it easy to understand and utilize in various microphone stand configurations. The model number TMP-CW-3 indicates a specific design within the On-Stage product line, ensuring compatibility and performance for your audio equipment needs.