www.americanfarriers.com/articles/10722-mustad-slider-45

Mustad Slider 4.5
December 12, 2018
The Mustad Slider 4.5 nail brings performance and efficiency to the Reining Circuit. It features a flat head and is made to fit flush with plates. It also reduces the need to rasp nail heads, secures a locking fit with most sliding plates and saves time.
For more information, visit mustad.com.