Meinl Plastic Merengue Guira Brush. Plastic Handle: The handle is ergonomically shaped to provide a stable grip and comfortable feel. Steel Bars: The bars on this scraper are tightly packed to provide the sharpest and most accurate sound possible. Sound Options: Experiment with wooden or plastic models and explore different sounds and techniques. For Any Application: This brush will provide an articulate and authentic sound when playing on any type or brand of guira.