Vater V-FEM30M Front Ensemble Medium Marimba MalletsVater Front Ensemble Medium Marimba Mallets are made with a blend of synthetic yarn and wool to give you maximum durability and weather resistance while still producing a rounded, full tone on the instrument thanks to their weight. Made with rigid birch shafts, these mallets are versatile and useful across nearly the entire range of the instrument. They've got a nice balance between articulation and warmth. Specifications Synthetic Yarn Wool Blend