A wooden mallet frog stick is a percussion instrument often used in music education and rhythm exercises. It typically consists of a carved wooden frog with ridges on its back and a separate wooden stick or mallet. The instrument is played by running the stick along the ridges, producing a sound that resembles a frog croaking. The frog stick is popular for its simple design, ease of use, and the unique sound it produces. It is often used in classrooms and musical workshops to teach rhythm and coordination.