This set includes 100 pieces of 120mm clear glass pre-roll tubes. The tubes are made of high-quality glass material and are suitable for various applications, such as laboratory experiments, medical use, and industrial purposes. The Vial Store brand offers a reliable and durable solution for your testing needs. The GTCRC120-CT model is a popular choice for professionals who require quality and precision. Whether you are a researcher, a physician, or an industrialist, these glassware and plasticware products are an essential addition to your collection.