The TENGA 3D Pile is an escalating form of elation. Gently stacked triangular protrusions form its structure, with tightly packed triangles bearing a soft sensation at the base and a distinct rippling stimulus as they space out at the tip. The varying sensations brought around by this gradient of stimulation harmonize both soft and hard sensations. Internal details within devices of the past have only ever held the purpose of providing stimulation. With the process of reversing, washing and drying, however, the exposed internal details are also in fact the external design. The instant this perspective is realized, the fusion of stimulating textures and structural beauty becomes the ideal in the pursuit of the pinnacle of masturbation!