Just a washer, but a washer nonetheless... Please take this opportunity to hear for yourself. This item was confirmed to be well-liked, and we are now able to accommodate multiple orders. Brass has excellent acoustic properties and is used in guitars and basses for sustain blocks, saddles, bridge bodies, pegs, nuts, etc. Looking at drums, one of the reasons why vintage instruments like 60s Supra-Phonics and old Radio Kings are favored is the imagined influence of brass hoops and washers on the sound. If you are dissatisfied with your current drum sound, this is a more affordable way to achieve a noticeable change than replacing the hoops. Thank you.