Constructed of a wood-based polymer that can be injection-molded like plastic, the RKS maintains the tone and long-lasting sound of wood. The material also allows for the ax´s unprecedented â€neck-through†open design, which accommodates the series of resonating aluminum ribs that add layers to the sound. The result is a guitar with the bite of a solid-body electric and the fullness of a hollow-body. From $2,000