The improved bore favours flexible register crossing. It is freer blowing during the most demanding pieces. The Divine clarinet comes with two barrels 65mm (442hz) and 66mm (440hz) fitting with both the Bb and the A models. The Divine is made of grenadilla wood with specific upper joint Green Line tone-hole slots. This eliminates air leaks on the tone-holes most prone to crack. The carbon wire which replaces the metal rings, makes the clarinet 60 grams lighter and thus contributes to its exceptional balance. With greater vibration and is freer blowing. As with the Tosca model, the Divine clarinets are equipped with a low F correction key.