Kernpower Powerball The Original Max Handtrainer With Digital Rev Counter And 6 LEDs-Fast Shipping

Description

Unique with integrated, digital tachometer (patent) – no PC or software required – regardless of location

Digital measurement and display of direct speed, top speed and number of revolutions in 30, 60, 90 seconds

Rotor is electronically balanced – 100% vibration-free concentricity – 6 LEDs for brilliant light effect

Housing made of shatter-proof ABS plastic