This pen is handcrafted with the use of Cocobolo wood. This exotic wood is from the forests of Indonesia that are slowly depleting. Because of this, importation of this wood will come to a halt. For every Cocobolo pen purchased we donate to have a tree planted in Indonesia with the help of the Organization: One Tree Planted. A Trimline pen is sectioned off into two pieces for aesthetic pleasure. This design allows for an optional bump, designed for a "pinched" writing style. Refill Instructions: Firmly grasp both sections and pull. Twist cross style refill counter-clockwise to remove.