Description from Amazon USA :
The Rico Contra Alto/Contra Bass Clarinet, Bass Saxohpone reed is a three-in-one reed. This reed is designed as a Contra Alto Clarinet reed. It will also work as a Bass Saxophone reed.
In addition, this reed will also work on some Contra Bass Clarinet mouthpieces, depending on the width of the mouthpiece facing.
Designed for a wide variety of playing situations, Rico Reeds are cut of our most flexible grade of cane. The ease of play, affordable price and convenient packaging options are why more musicians worldwide find Rico the best value.
Designed for ease of play
Unfiled for powerful tone
Priced affordably for educators
Available for full range of clarinets and saxophones
Offered in boxes of 10 reeds
At its San Fernando Valley facility, Rico has a state-of-the-art reed research center, and employs the collaboration of agronomists, scientists, and musicians to produce top-quality reeds that include Rico Reserve premium reeds for clarinet and saxophone. Rico reeds are designed to benefit all levels of musicians from the beginner to the seasoned professional. Many of the world's finest clarinetists and saxophonists use Rico brand reeds, such as Anthony McGill, Mark Nuccio, Jessica Phillips, Jerry Bergonzi, Chris Potter, Benny Golson, Ernie Watts, Bob Sheppard, Walter Boeykens, Seiji Yokokawa, Philippe Geiss, Diastema Saxophone Quartet, and many more. For more information, visit RicoReeds.com