The Denis Wick DW4917 mouthpiece brush is made in the UK from twisted steel with firm, non-abrasive nylon bristles. There are no sharp protuberances to scratch the surface of the mouthpiece. This sturdy brush is suitable for every mouthpiece from trumpet to tuba. Suitable for any brass instrument mouthpiece Non-abrasive nylon bristles No sharp protuberances to scratch mouthpiece surface Made in the UK