Zebrano is a relatively new wood to me. The grain pattern is very distinctive. The Saturn Pen is similar to the Slimline, insofar as it uses the same refill, and is a twist mechanism, BUT the centre band is slightly wider than the Slimline Pen, allowing more of the grain of the wood to be shown off! This is finished with Cellulose Sanding Sealer and Melamine Lacquer for a hard-wearing product.
The grain pattern is set so that when the tip of the pen is down, the grain of the wood matches across the length of the pen.