The product is a set of 20 Metric Male Brake Pipe End Union Nuts, with a size of M10 x 1mm. Manufactured by Pearl, these nuts are designed for rear, left, front, and right placement on vehicles.m and are suitable for a range of car parts and accessories. These fitting nuts are not a performance part and are not universal in terms of fitment, providing a reliable and high-quality solution for brake pipe connections.