Code drum products are purpose-built, designed by drummers for drummers. They have matched time honoured and trusted manufacturing techniques with up to date cutting edge technology to produce a new premium range of drum heads and accessories. Plus, all materials used to manufacture Code products are 100% recyclable. Code Tone Adaptors provide absolute control of overtones to give varying tonal effects including glorious low end thump to your snare drum. Pack comes with two extra-wide O rings, one white and one black, that can be used independently or both at the same time, to shape the sound of your snare. Available in 13" and 14" diameter.