Yes, there are like “air cushions” in it. They provide a very nice tight sensation, better that one obtained with elastic material. The internal structure is quite simple yet effective (you see easily on the section view of NLS that it depicts a (simple) vagina, the cushions recreating it’s muscles). Oh don’t worry about the depth: western people also got it to the root. One thing: don’t stroke too hard. I got the cushions to explode once ^^
From the same series:
Tenga Air Cushion
- Feeling and pleasure - 8/108/10
- Materials and cleaning - 7/107/10
- Packaging and addons - 5/105/10
- Price - 6/106/10
Not very impressive..