Based on our own experience, these wheel adapters are a disaster .They might be cheap, but the cost isn`t worth it. The adapters looked sturdy when we received them, but once we tried to install them on our Automotive we ran into problems. They are labeled as 4X156 4X110 Thickness but in reality they don't fit properly. They screwed up the hub and the thread on the bolt stripped halfway through installation. The hassle and damage is not worth the savings..