Take your masturbation up a notch.
With a special valve structure, Tenga’s Original Vacuum Cup Strong gives you the feeling of suction while you masturbate. Just open the cap, insert, cover the air hole at the top, and enjoy solo sex at its finest.
Note the hourglass shape of this toy: that’ll give you a satisfying, tight squeeze upon insertion. It’s a pre-lubricated product: about as easy as it gets. Once you're done, simply place the cap back on the item and dispose.