The three pressure plates can be interchanged to suit various reeds often turning fair reeds into good reeds.

Incredibly easy to use, gives you assurance your reed is well positioned.

I've been playing clarinet for a while, and the Vandoren 5JB mouthpiece (with the Optimum ligature) made a huge difference to the ease of playing (along with getting the right reed, of course).Then I started to play the sax

It took me about a week to get used to the slightly different way of playing and to figure out which reed to use (the reed I used on my regular mouthpiece seemed to play too harshly with the Optimum ligature).Now, with the Optimum ligature and the right reed in the right position, I'm finding that I can actually play the clarinet quite well