Experience an enriched sound and balanced tone with the ProMark Jim Wunderlich JW3 "System Blue" Marimba Mallets. With a round synthetic fiber core with brass inserts and a layer of latex wrapped in synthetic yarn, the mallets are designed with durability for outdoor performances. The finished birch handles have a silky, ultra-smooth texture for superior comfort. Recommended by in-demand technician Jim Wunderlich, these mallets will provide vibrant tones for both indoor and outdoor settings.