They now have a 2-tone aluminum core color! We machined the edges after anodizing for an improved look. We also machined the numbers into the carbon fiber for an easier to read, cleaner appearance. (The old method was laser etching). The blue pinion tree is now a little darker in color. We are now including a black velvet pullstring bag at no extra charge. This functional piece of art was designed to last a lifetime. Made with quality materials. 4mm thick carbon fiber protects the teeth of your pinions, and looks awesome. The core is machined from a solid block of aluminum. The pins are hardened tool steel. Order Here The pinions were variably placed to efficiently use the space. It was this second effort that allowed us to fit 36 pinions in the tree! (64P pinions 34T through 70T) New chamfered 2-tone edges with more precise machined numbering into the carbon fiber make these look amazing. We are offering them with a variety or preferences: Assembled or unassembled. Orange, Blue, Red, and plain. Contact us about custom colors. Fully loaded with Tuning Haus pinions. Custom Laser Engraving. Source McPappy Racing: http://mcpappyracing.com/pinion_tree.php