I have 2 sets of 4 available for $50. One set is used inclusing shipping in the USA, one set is used and one set is new. They are 6061T6 alloy, very strong. I have run a set on my TR-2/3 for a couple of years with no problems using wire wheels on my disc wheel car. I became a wheel dealer for VTO performance wheels and converted back to alloy wheels. If there is a demand for these adaptors, I could make more. Thanks, Bill Close, Mesa, Az. (602)524-5351