The PDP PDAX101 beater gives you the best of both worlds. The felt surface produces a round tone that calls up the traditional kick drum sound you've heard on thousands of recordings. For more of a transient attack, switch to the hard plastic side. It adds a pronounced "click" to the attack, for a tone that cuts through the loudest bass players and the densest mixes. Whichever sound you want, the PDP PDAX101 beater will deliver.