Insane Bolt 2 - Double Man Overspeed Acupuncture making it a favorite of

making it a favorite of clinics and physical therapists

An economical and efficient way to help build powerful legs and train two athletes simultaneously

even children

Includes 2 waist belts and 1 20' Slastix

Insane Bolt 2 - Double Man Overspeed Acupuncture making it a favorite ofTwo person, overspeed training device. As athletes transition from the acceleration and burst phase into the sprint phase of running, this maximizes stride length and frequency, the 2 elements of speed. Operates like the Leapfrog but with a longer 20' Slastix. With a near maximum stretch of 60' between them, athletes begin springing simultaneously. Includes 2 waist belts and 1 20' Slastix. Also available with 1 waist belt and 1 shoulder harness for