The Flip Air consists of a rigid plastic shell and a TPR silicone interior; which is a fairly reasonable approximation of human flesh but not as soft and sucking as the more famous Fleshlight. It's a little firmer than I personally like; although those looking for some rigid friction might find this product more satisfying. The firmness is a subjective matter; but the interior still delivers great performance.
Size-wise, the Flip Hole and the Flip Air are about the same; which is an advantage because Tenga's "lite" model was so small it would leave many more well endowed men (such as myself) unable to use it. The hole and length of the Flip Air are both neatly satisfying; another important aspect of the Fleshlight that Tenga matched and arguably exceeded.
It's also a breeze to travel with, as the top seals the entire unit discreetly and makes it ideal for throwing into a suitcase and also not obviously a "wanking sleeve" if you accidentally leave it on the bathroom shelf.
The Tenga Flip products use an innovative button that you can "pump" to create a vacuum and increase or decrease friction. This works in much the same way as the screw-base of a Fleshlight; only a little more elegantly and allows you to control the pressure along your entire shaft, rather than just at the end.
If I have one criticism, it's that the Flip Air does make one hell of a squelchy racket when you use it; it's certainly not that discreet a toy.
The Flip Air is a breeze to clean. You unlock the base and can open it up like a clamshell; arguably the major selling point over the more popular Fleshlight. The TPR silicone interior is also easier to clean; you can use soap and don't need to put corn starch on it afterward. In that respect, the Tenga is the best toy on the market for ease-of-maintenance and perhaps the only thing you need to be aware of is to keep it away from oil based and silicone lubes; which can destroy the material.
Beautifully packaged in a clear plastic case; but also a beautiful package on its own. It's ideal for safe and discreet storage and transportation.