Ummm I didnt pay attention to the name of the joint but I bet thats what it was… there was this one device called the “Pendilum” or some shit like that… one end went up the bummhole and then there was a little battery acutaited punching bag than smacked your sac. hahahah I I was laffin my ass off, there was a diagram and everything on how to use it! hahahahah