Stronger than cast, the hypereutectic material resists damage due to detonation.  They are light in weight, low in cost, a viable alternative to "high dollar" pistons.  All of these high quality pistons come complete with piston pins, and the pistons and pins are already pin fit. The sets are also weight matched before packaging. The pistons are available in a wide range of sizes and compression ratios, for a large variety of engine types.