Shimano Shimano MicroSpline HG+ 12mm Thru x 142mm 28 Hole Bicycle Rear Hubs
About Shimano - "Shimano practices good local citizenship, pursues continued access to those areas that are enjoyed by outdoor enthusiasts, and is committed to minimizing our impact on the environment."
12mm Thru x 142mm
The hub drilling is the number of spoke holes. It must match your rim spoke count.