www.dummiesunlimited.com "grapple man" ,,,,, is the one i got. it's very expensive but the most life like on the market. the joints are moveable but you can't seriously crank on them hard. but it's good for very easy drilling. you can also hang it and use it for very light striking simulation (hanging hook on the back of it's neck). You can put it on a heavy bag stand. you do hear a lot about the bubba dummie, primarily because it's the one that the gracies put their name on. I'm not sure it's the best one, it's just the one that word has spread on because of all the gracies pushing/promoting a product they endorse.