About this 3D model

I would like to share with you this amazing design for all of you interested in the special connection between pain and pleasure. This is a nipple vise for your self, your darling or your playmate. Just open it up, slip whatever body part you see fit in the opening and slowly tighten the screw to see your subject start wincing in pain as the spikes presses deeper and deeper into their flesh. For extra painsure (pain/pleasure), hang some small weights from the handle to increase the fun.