Waste product and a waste company in my opinion. Hub rings are critical for wheels that don't match your car's hubs. These things fit the wheels "well" but knock on the hubs. It's molded in plastic, and it can't be that expensive to handle even mediocre tolerances. In any case I tried to return them in exchange for a much better Gorilla product. Just received them today and they snap onto my wheels and fit my hubs very well. Every brand I consider isn't even worth returning. After the buyer "paid" for the return postage and 20% restocking fee (really?), I almost should have returned it. Spend $10-$15 more and buy the Gorilla brand. I use these for throwing rings or similar.