The product is a lot of 10 1/2" black steel 2" long nipples made of black malleable iron. These pipe nipples are used in hydraulics, pneumatics, pumps, and plumbing for fittings and adapters. The durable black malleable iron material ensures a reliable and high-quality product that can withstand various industrial applications. Perfect for connecting pipes in different systems, these nipples offer a strong and efficient solution for various plumbing needs.