Modern aluminum, good buzzsound.
The world's favorite trumpet mute! This is perhaps the most successful, and most copied trumpet mute ever. Since it was first designed in 1968 it has given trumpet players exactly what they need: a mute which is perfectly in tune in all registers, a great feel which doesn't effect the 'blow' of the instrument, and the ability to produce a searing fortissimo in orchestral tuttis.
The reason for the success of this Denis Wick mute lies partly in the brilliance of the design and partly in the care and precision of the manufacture. The design has created a very open mute, bigger than all its predecessors, giving a full sound and avoiding the problem of sharpness of pitch encountered in many trumpet mutes.
The hand-spun aluminum is both light and extremely resonant. Other manufacturing techniques produce mutes which are not as hard. This manufacturer's hand-crafting produces a mute where the metal is 'work-hardened' making it both light and very resonant. This makes it free-blowing and extremely responsive and the choice of the most demanding musicians.
Real cork is used to produce a snug fit in the bell of the instrument.