The Vibraslap or Rattle Clap is also called a Donkey's Call. It is meant to emulate the original sounds made by rattling the loose teeth in a dried out horse's jawbone.
Inside the wooden resonator are a number of metal teeth. By striking the ball on the palm of your hand, the teeth rattle against the wood creating a high pitched rolling rattle.
Perfect for special effects and so much nicer than that old horse bone. Great noise maker.
