The longer threaded-rod "feet" of the Wolf Forte Primo shoulder rest give it more height than just about any other shoulder rest on the market, making it the perfect choice for taller players or those with longer necks. All of the Wolf shoulder rests are also a great choice for the electric violinist. The rubber surgical tubing that covers the feet of the shoulder pad gives a firmer, more stable grip on high-gloss, painted finishes and rounded edges of electric violins. Even carbon-fiber, polymer, and composite materials don't deter these shoulder rests. If you have an electric violin or viola and you've had a problem finding a shoulder rest that will hold tight for a stable feel when playing, the Wolf Primo may be the solution you've been looking for!