Remo’s Fiberskyn® drumheads provide a superb, authentic drum sound when used on world percussion instruments. In fact, they are the world’s most widely recorded synthetic world percussion heads. The MONDO™ construction style. These heads feature a straight-wall ACOUSTICON™ construction. Mondo heads are stronger, more durable than natural skin heads. Unlike animal skin, these heads are resilient to variations in weather and climate, making them easy to tune and play in any condition.