The E-slim nail is manufactured with a longer thinner shank than the E-nail so that it can be driven simply, precisely and high into the hoof wall. The E-slim is ideal for horses with a thin hoof wall, such as many warmbloods, as it causes even less disruption to the hoof wall than the slightly thicker E-nails. All Mustad nails are highly polished allowing them to glide precisely through the hoof horn without deviation.