I make each product to be a fine quality. I personally select each piece of wood to give each pen an unique quality to it. Even if 2 pens are made out of the same wood, the grain paturn makes them unique. I made this slimline pen out of the ever popular purple heart wood. The deep ritch purple color is the natural color of this wood. I made with black refillable ink, you can find replacement ink at any office supplies store.