Here's a photo of the EK-FC4870 X2 CF:EK-FC4870 X2 CF: This is the cheapest version, it costs 109.96EUR and has a electrolyc copper base and a top made of quality acrylic glass.
EK-FC4870 X2 - Acetal CF: This model retails for 114.95EUR, it features a electrolytic copper base and a top made of quality POM acetal.
EK-FC4870 X2 - CF Nickel: This model costs 119.50EUR, it has a nickel plated electrolytic copper base and a top made of quality acrylic glass.
You can buy one over here.