Warburton Speak-Easy raw, Weights for Warburton Trumpet Mouthpieces, More resistance and better response, Easy to attach or remove, The set contains: Speak-Easy 600 (light weight), Speak-Easy 620 (medium weight), storage stick and three O-rings, The 600 weight is suitable for most players, The 620 is ideal for players who need more resistance or prefer a darker sound, Brass, raw