The product is a 12" metal hubbed adapter from Chemglass, a trusted brand in the United States. Designed for use in lab settings, this 18 gauge glass adapter provides a secure connection for various applications. With its durable construction and precise measurements, this product is essential for medical, lab, and dental professionals seeking high-quality glassware and plasticware. Ideal for connecting glass tubing and creating a seamless workflow in research and testing environments.