I have these wheels and LOVE them. The Bolts on the outside are metal, but the pieces around them are plastic. The red piece is almost like a rubbery sticker. They are great looking wheels, and so far have performed well and held up like any other wheel.

 

I've seen some companies that claim they can turn them into bead locks. I might look into that one day. But until then.

 

Sorry forgot the pics.
Some of these are pre 4" lift but you get the idea.