All wood used for the pens is from sustainable sources, no tree is felled just for the sake of it. Most of the English woods used come as by-products of the tree pruning/forestry industry, furniture makers or reclaimed from old properties. Occasionally from wind blown trees and drift-wood. The foreign exotic woods used are bought in from abroad and come from the same type of renewable sources. Some of the pens are made from man-made alternative materials, such as Ivory, Coral, Horn. There are also man-made Polyester Acrylic's, these normally have very striking colours and patterns within them.  The metal components from the pens are sourced from specialist suppliers in the USA and are thus fairly unique in the UK.