From series 1, the Black Mamba Regeneration 2000 featured a state-of-the-art ball bearing axle system, and take-apart design. Unlike other Black Mamba models, however, this version had no auto return mechanism. This smooth, long spinning yo-yo was great for all types of string tricks. Abbe made two versions of this model: the regular edition seen in this exhibit, and a limited edition model seen here. Both versions are identical except for the color and side caps.