The Jim Casella Series IP1003X heavy hard yarn marimba mallets are on rattan handles and are designed for both indoor and outdoor percussion ensembles. The hard yarn wrapped around a rubber core creates full, bright tones that fit in perfectly with any ensemble situation. Rattan handles are thick and durable, perfect for long hours of practice or heavy-hitting performances. The IP1003X features a slightly thicker rattan shaft and added weight in the core for better projection and articulation. Hard yarn mallets are typically used for lead parts on middle and upper ranges of marimbas. Jim Casella's extensive expertise in music arrangement has contributed to the design of this well-rounded mallet series.