This Meinl Professional Tabla Set is superbly crafted in keeping with its classical heritage. Its multi-ply natural skin heads are secured by metal rings and rawhide verticals. Proper tuning is achieved by adjusting the wooden rollers that are fitted under the rawhide verticals. The tones of these tabla drums are exceptional for their clarity and character.Copper shell High-quality goatskin tabla drumheads Traditional tuning system with mahogany rollers and rawhide thongs Tabla set includes tuning hammer and wooden tuning dowel Ring pads Protective head covers