This is the solid aluminum platter that VPI has used on many models for several years. One can use it on almost any VPI model that doesn't already have an aluminum platter and this combo would be great to convert an older VPI that has a lesser platter and non inverted bearing. I have 3 different bearings actually. I am selling this platter for the original owner that used it on an HRX with Rim Drive, that's why it has a smooth side. The smooth sided platters work fine with either belt or Rim Drive. I actually have a choice of 3 different bearings that the buyer may choose from. The large may only fit on an HRX or TNT, while the smaller ones should allow the platter to be used on most, if not all the other VPI tables. Only one bearing will be provided with the platter, your choice. Payment by Paypal only. Buyer pays shipping.