The Malletech Kevin Bobo KB14 Hard Marimba Mallets are wound very tightly with an extremely durable, thin nylon yarn. They produce a deep, consistent tone throughout a wide dynamic range while producing clear articulation even at very low dynamic levels.
 
Handles: Birch
Core Type: 1 3/16 in Plastic Disk
Layers: 1 of 4 layers of latex or foam with 1 rubber layer
Yarn: Durable Red Nylon