Terma aims to think differently when conceiving its radiator designs and the Hex is in its own class, made from hexagonal shapes across a multi layered design with breaks in the formation of the each hex for extra design distinction.. Manufactured from durable, low carbon mild steel. Hex doesn\'t simply sit on the wall - but looks like it has grown out of your wall. The little peg type parts which jut out are perfect for hanging your kitchen / bathroom towels to dry. The Bright Copper colour from Terma has a metallic, smooth texture..