Salyers Percussion Doug DeMorrow PVC Xylophone/Bell Mallets are clear and crisp on both instruments, and are about as hard as you want to go on a xylophone. They've got a lot of attack up front and can cut through an ensemble with ease.
Doug DeMorrow mallets feature extra weight in the heads so that the mallets activate the entirety of the bar with relatively little effort. These mallets are designed to produce the fullest sound possible from the instrument, and are particularly good for rich 'percussion orchestra' sounds.
Flexible rattan shafts absorb some of the shock that occurs when the mallet hits the bar.