Yes, the ring works if you have a VPI table that can accomodate it. I have an Aries I, and Harry has told me it will not work with that model. I'm looking into some of the after market rings but so far it does not appear they will work either. The platter on my unit is actually 11.5 inches in diameter. I could change the platter but it has gotten much better reviews then the arclyic platters. An alternative I am considering is purchase of one of the disk flatten devices. Anybody have experience with these flatteners?