Grown in Brazil this is a light hard wood. The tree only grows to about 4ft tall. It is a fabulous wood to work with and brings a special something to this attractive Rollerball pen. It has a Medium nib and comes with a black refill. It can be made as either a rollerball or fountain pen or indeed as a set. The Fountain Pen pictured is made using Mexican Cocobolo. The pen style comes from the Leveche stable and is a most attractive design. PLEASE STATE FOUNTAIN OR ROLLERBALL WHEN ORDERING