John Packer JP021 student Bb clarinet outfitIntroducing the John Packer JP021 student Bb clarinet outfit The JP021 is a full system Bb clarinet that features nickel plated keywork, so you can be sure it will last all the way through the lower grades and beyond. It also comes with two tuning barrels, making it easy to play in tune. The body of this instrument is crafted from ebonite, which is a form of hardened rubber. This material isn't affected by changes in temperature or humidity, unlike