Trade: Campagnolo Wheels

I am looking to trade the following,

My: pair of 700c campagnolo super record wheels with black mavic sup rims and a maillard 7 speed casette

for

Your: Campagnolo super record/record or gran sport wheels with a 7 speed casette but with traditional metal rims.

i am doing the trade because i want metal rims and not black.

i am based in berlin so posting would have to be done

thanks

Aren't the 'black' rims made of metal?