Climax Doll developed the movable jaw and real oral feature on silicone heads to make the dolls more expressive. The lips adopt the softer silicone, the teeth part uses relatively harder silicone to simulate the natural hardness of real teeth of humans. Plus the soft tongue, this intricate combination may take you to experience a different feeling when doing oral sex.

They offer this feature for these silicone heads: Sola, Mouna, Ginny, Grace, Lillian, Janice, Athena, Gimogi, Fukada