From the Selmer Paris Website:

This pioneering bi-material mouthpiece with its unique acoustic and sound properties testifies to Henri SELMER Paris’ ever-growing desire to improve its products. Designed in close collaboration with Claude Delangle, this mouthpiece perfectly reflects his personality.

The metal ring characteristic of Adolphe Sax’s first mouthpieces and its cutaway design testify to a privileged relationship between tradition and the latest advances of the Concept family. The gold-plated metal ring lines the entire bore and allows for a denser, fuller sound with increased projection. The acoustic performance of this new alto saxophone mouthpiece signed “Claude Delangle” will charm saxophone players and audience members alike.

• Round chamber

• Table opening: 1.65 mm

• Table length: 24 mm