- D'Addario Plasticover Plasticover Bb Clarinet 4.0; reed for Bb clarinet (Boehm system); strength: 4,0; french cut "filed" supports an easy response; plastic coated: protects against humidity and climate changes and provides durability, as well as a clear tone; flexible reed for immediate response; content: 5 pieces EUR 23.00 - See more - Buy online