I really love this mouthpiece brush, it has really strong ( synthetic ) haires, so you can really give it a good scrub. It wont damage or scratch the mouthpiece, bud gives even an old, long time not used mouthpiece a perfect scrub ( cleansing ) also a very strong shaft ( handle ) with plastic coating and a protected tip. The shaft might have been just a little longer, so you can go easily all the way through and back, bud this works just as well, only a little slower, bud still the best mouthpiece brush i have got, thanks :)