A high quality, functional, three-piece model. Default size is 3or successfully scale to 50% for a 1.5 model. A raft is recommended for the spindle. Unlike other similar models, this has been specifically designed for the ball to be printed as one piece. It also requires no internal fill for a quick print and no wasted material. Print with bronze, silver, or gold PLA for a good replica or print in white and paint with desired metallic colors. Place on top of cell phone, tea light, or LEDs for intersting effect. Simple, effective, and a great teaching tool.