The Tenga Flip Hole was designed to provide a unique sexual experience each and every time. While most of the male masturbation market has churned out artificial vaginas, Tenga opted for improvements. The Flip Hole features a hard case with a flexible front face and buttons to allow you total control over the experience. Inside soft elastomer shapes turn each centimeter into a specific sensation. The vacuum pump controlled by the buttons creates a squeezing pleasure. The wing gate has big ribs midway in to grip and hold you. The side ribs add side stimulation for maximum feel. The Quattro wave provides waves of multiple sensations, while the 360 orb provides head stimulation. The lip flat provides a good grip upon insertion, while the shield flap helps to keep lubricants inside. The entire unit flips open for easy cleaning. This alone puts it ahead of the competition. All in all, the technology combines to provide you with a stimulating experience each time.