Malletech Bob Becker Xylophone Mallet - Medium Bright Blue Medium Hard Bob Becker Xylophone Mallet - Medium Bright Blue Medium Hard Designed for solo xylophone use, Bob Becker Series original plastic models are light, similarly weighted and easy to maneuver quickly around the instrument The rattan handle diameters are 7 5 to 8 mm on the BB32 and 7 1 to 7