Roto Drums are the single headed percussion instrument which produces sound of harmonic frequency spectra that means the listener can easily understand its pitch. Many well known drummers are playing rotodrums in their events, functions and even in music albums. Roto Drums are used as a substitute for timpani. Rotodrums has a very quick tuning process by only rotating its aluminum or zinc head. Devmusical.com sells rotodrums online at a very low price in India.