Introducing the Nalge Nunc Unwire Racks made from durable polypropylene, model NALGENE 5976-0313. These racks are designed to hold 13 mm tubes securely, making them ideal for laboratory use. Their sturdy construction ensures stability while allowing for easy access to your samples. The open design promotes airflow and efficient drying, while the lightweight material makes them easy to handle. Perfect for any lab setting, these racks help keep your workspace organized and your experiments running smoothly. Elevate your lab efficiency with these essential unwired racks!