Tenga Flip Hole Masturbators are remarkably discreet and wonderfully pleasurable. When closed, it’s hard to tell that this is a sex toy for men, but that it certainly is, and a cleverly designed one at that. The Flip Hole has a hard outer casing, lined with soft bodysafe silicone that is nubbed and ridged in various patterns to provide amazing sensation when stroking. The large white buttons on the side of the Tenga Flip Hole allow you to make it tighter in the perfect spot as you stroke, while the suction effect heightens your orgasm. The Flip Hole male masturbator is easy to lube up: just remove the cap, open the toy out, apply your lube, then close it up and pop the cap on the other end to get started. Repeat this procedure in reverse to open and clean your Flip Hole D2 after use. Remember to use only water-based lube with your silicone sex toys. Handily, the Flip Hole D2 comes with three lube samples to get you started.