The drum is a percussion instrument, technically classified as a membranophone, referring to the membrane (drumhead) that's stretched over a shell and stuck to produce sound.    From Wordnik.com.  [Nashuatelegraph.com local, state, business and sports news] Reference

The Hebrew word tof represents a hand-held frame-drum, a hoop-shaped drum with a diameter wider than its depth and well known as a popular membranophone (percussion instrument) from artistic representations preserved from the ancient Near East.    From Wordnik.com.  [Women with Hand-Drums, Dancing: Bible.] Reference