Other competitors such as Matt Girdner, Michael Selearis, Sean Madera, Marcio Barboza, Christian Binnie, and Anthony Macaluso are known for their reliance on strength, coupled with the hook technique, where the wrist turns into a hooked grip after the referee has started the match. "The hook" or "hooking" is any move derived from the inside system of arm wrestling. The second generic system or style of arm wrestling is known as outside arm wrestling "the top roll" or "top rolling", while the "triceps press", "shoulder pressing", or "shoulder rolling" is often described as the third generic system or style of arm wrestling. Certain arm wrestlers depend on the straps, such as Jason Vale, who won the 1997 Petaluma World Championships in the super heavy weight class at only 175 pounds using the strap technique.