Check the listing for details. Aquarian drumKit Tools duraDOT Drumhead Tone Modifier. Condition: New. Listed at 11.99 USD. The 4.5 and 5.5 duraDOT drum head tone modifiers are made to help shape snare and tom head frequencies with an added focused stick attack. The duraDOT also adds durability and longevity to your drum head. Like the toneTAB, the removable duraDOT can be played on, and placed anywhere on the drum head for quick, real-time tone adjustments. But unlike the toneTAB' fine tuning effect, the duraDOT' changes are dramatic. Go from a wide open, high-frequency snare drum ring, to a wet, flat and funky backbeat sound in the same song! The proprietary adhesive backing is made to be used over and over again.