The SpinFaktor HG Heavy Gravity featured rim weighting like YoYoJam's composite body models, but was an all plastic model. The rim plastic was made much denser than the rest of the yo-yo by adding heavier particles to the mix.
This special edition has a marble-ized body, and side caps commemorating the 2005 Great Race, and is signed on one side by YoYoJam owner Dale Bell, and on the Reverse by Art Taylor.
