The new throat design of the Concept mouthpiece brings greater
  focus to the air flow, allowing greater density of sound and
  expansion of the array of timbres. All while preserving the
  facility of sound emission, its larger tip opening favours a
  breadth of sound throughout the registers, allowing a greater
  sound projection.
  - Opening : 1.10 mm
  
 
  - Table length : 23 mm
  
 
  - Chamber : trapezoidal.
  
 
  - Mouthpiece cushion included.