Pleasure object. The internal shape of HOLE could only have the purpose of “stimulating”. However, when considering the process of “turning over, washing, and drying,” the internal shape is rather “appearance.” At the moment of this perspective, the fusion of details that create pleasure and the beauty of modeling is ideal for those who aim for the ultimate in masturbation. TENGA 3D. It is a “pleasure object” created by a change of thinking.