They were great, not the thick cushion, but slightly thicker than just a covering

They protect the mouthpiece and cushion from vibrations

Decades ago, I used to build up players of waterproof first aid tape, to make a cushion for my teeth so they wouldn't hurt when I had to do all sorts of busy movements in college marching band performances.

A single cushion will work for up to a whole year

As a mother of four woodwind band students and a clarinet player myself, I can highly recommend these mouthpiece cushions

No need buying those cheap $5 for 16 scary chemical- treated cushions no more

Looks great on the mouthpiece, good adherance and cushion, size was perfect.