– All heads can be either hard silicone heads or soft silicone heads. Default is hard silicone head. 

– Hard Silicone Heads: mouth is closed and so no oral sex access.

– Soft Silicone Heads: mouth can open, with built-in tongue and oral sex access.

– Soft Silicone Heads + ROS: mouth can open and shut because of the hinged jaw structure, with realistic oral structure, with teeth, with builit-in tongue, with oral sex access.

– Implanted eyelashes & implanted eyebrows are default for all hard/soft silicone heads.

– Hair implant can only be available on hard silicone heads.

– Auto blowjob & moaning can only be available on soft silicone heads.