The BetterSax Burnin' Alto Saxophone Mouthpiece - 6 is the result of a unique collaboration. This hard rubber mouthpiece is very free-blowing and shimmers with a warm tone. It's meticulously crafted with high standards. The large chamber gives you the warmth and depth that lets you blend well with other musicians, while the straight sidewalls and roll-over baffle produce a surprising amount of power and brightness. The 6M tip opening is great for advancing players who want to put more air into their horns.