About the SpinFaktor
The SpinFaktor was YoYoJam’s first composite yo-yo, featuring a plastic body with aluminum weight rings developed with input from Linda Sengpiel and Bill de Boisblanc. Nine of the top fifteen players at the 2001 World YoYo Contest used SpinFaktor series yo-yos, including all top six. Its rubber O-rings were attached to the outside of the rims for protection rather than response.
