Features

• AutoStart Feature ¡X Features an internal pre-tensioner that allows you to start and stop exercising as you please; Just roll back the rotor in the direction of the arrow
• Low-impact Exercise ¡X Allows you to improve your grip without feeling excessively tired post-workout
• Designed to Last ¡X Built with an impact-resistant structure, including a military-grade plastic shell and reversible inner tracks for a long life
• Easy to Use ¡X Easy even for beginners thanks to the battery-free design and intuitive AutoStart feature; Lightweight, portable and travel-friendly
• Precision Made by its inventor ¡X Computer balanced inner gyroscopic rotor with Stainless Steal Axle; Compatible With NSD Digital Speedometer Sm-01 and Sm-02