History / About
Released on April 15, 2005, the SpinFaktor HG (Heavy Gravity) was YoYoJam’s first yo-yo to use a denser composite plastic — saturated with metal powder — to add rim weight instead of traditional aluminum rings. This created a mid-price-point model between the budget all-plastic range and the premium metal-rimmed line. It became the last yo-yo to carry the SpinFaktor name until the SFX in 2010.
