Carbon and brass build, fantastic set of included tips (M and L Comply's, all sizes of silicones) and good sound quality for a realistic price.
I bought a set for my wife. She just got back from her first run and is gushing about them.
For the record she has never said anything about any of my gear!
Well done NuForce.
Hopefully posting here is OK, I know that this is the NuPrime circle.