Check the listing for details. Innovative Percussion IP2003 James Ancona Medium Marimba Mallets - Black Yarn -. Condition: New. Listed at 45.95 USD. Pro-quality Mallets from a Marching Percussion Master The Cavaliers. Glassmen. Carolina Crown. These are only some of the many world-class ensembles that make up James Ancona's impressive decades-long résumé of work. Created in collaboration with the man himself, Innovative Percussion's Ancona Series of mallets were ideated to meet the needs of one of today's foremost master percussionists. IP2003 James Ancona Medium Marimba Mallets utilize a rubber core for exceptional performance in indoor and outdoor settings, delivering a full-bodied, warm tone and an extended dynamic range. Their specially designed tightly woven synthetic multi-ply yarn withstands daily use in rehearsals and concerts, with a birch handle to deliver the perfect balance of durability, richness, and bounce.