The Symmetry Nuskyn® Conga drumhead is our most Versa®tile Conga drumhead in terms of fit. Nuskyn® provides natural, warm, and full-bodied sound with enhanced low and mid-range frequencies, without any lingering high pitched overtones. Symmetry provides superior construction, low maintenance and features a Crimplock® hoop increasing stability and tuning range. Symmetry drumheads fit more Conga drum models from the various manufacturers in the industry. Available in sizes: 9.75", 10.75", 11", 11.75", 12.50", 13".