Picked these up at AMPS 2000 from a vendor. They are basically two resin copies of the rubber tyres (with seams) and plastic rims from the tamiya kit. Now, why, you might ask would you want to buy resin copies of tyres already included in the Tamiya kit? Well, personally, I despise the rubber stuff. The seam is difficult to remove from rubber, and they don't hold paint very well. For three US bucks it is a nice cheap (and crisp) alternative.

Update: Used them in August of 2000. They look great and require zero clean up. Tires are very crisp