Vandoren Java Alto Saxophone Reed, hardness 2.
Developed in 1983 for jazz and popular music. A thicker tip and a more flexible palette* than the Traditional reed allow vibration over a larger surface area with maximum elasticity.
This type of vertebral column gives the musician much greater playing flexibility, as the resultant elasticity zone is very large.
*Palette: zone where the waves are propagated with the greatest range. From the tip, the waves are absorbed further in the JAVA reed.