The RUBBER GROMMET 3/8"ID, 1/2"DRILL, 1/16"GRV is made from high-quality rubber, providing a reliable solution for protecting wires from wear and damage caused by sharp edges in drilled holes. With an inner diameter of 3/8 inches and a groove width of 1/16 inches, this grommet is ideal for various automotive and industrial applications. Its robust design allows for easy installation in a 1/2 inch drilled hole, making it a must-have component for enhancing wire management and reducing the risk of electrical failures.