According to CSIRO, this is a first for horse racing and demonstrates the potential for the technology.

 

Horseshoes are traditionally made of iron or steel, but they’re often made from other materials for special purposes, such as rubber, plastic, magnesium, or copper. For racehorses, aluminum is preferred because its much lighter than steel, which is important in a sport where every ounce can mean the difference between victory and defeat. Unfortunately, aluminum doesn't wear as well as steel and is also isn’t as light as it could be, adding as much as a kilogram (2.2 lb) to a horse’s weight.