CodaBow Infinity Bass Bow German, inner acoustic core made of Kevlar fiber, outer shaft made of graphite fiber weave, German style frog body made of black Xebony®, frog button made of thermoplastic, frog slide made of Carbon-fiber, frog fittings made of nickel silver, tip plate made of fiber-reinforced thermoplastic, wedges/plugs made of fiber-reinforced thermoplastic, hair from domesticated horses (Equus ferus cabalus).