The product is a set of 5 brass pipe hex nipples, measuring 3/4"×3/8" NPT. These fittings are commonly used in hydraulics, pneumatics, pumps, and plumbing systems. The hex nipple shape makes it easy to install and connect with other pipes or fittings, providing a secure and reliable connection for various applications. Made of durable brass material, these fittings offer corrosion resistance and long-lasting performance in both industrial and residential settings.