NSD Power PB-688A Black NSD Power Roll N Spin Spinner Gyroscopic Wrist and Forearm Exerciser with AutoStart Feature

NSD Power AutoStart Spinner Gyroscopic Wrist and Forearm Exerciser with Auto Sta

No starter cord or external battery powered aid needed- We have made using the Spinner to strengthen your wrist and arms easier than EVER- The Roll n Spin Spinner incorporates a pre-tensioner inside the gyroscope that allows for a simple roll back to spin up the gyro with enough momentum to get you started- - AutoStart with internal pre-tensioner, just roll back the rotor in the direction of the arrow on the rotor or against the internal resistance, when sufficient tension is achieved, just release and enjoy!- - Patented Design; Compatible with NSD Digital speedometer SM-01 and SM-02- - Computer Balanced inner rotor for VIBRATION FREE operation at up to 15,000 RPM- - Break-Resistant structure with Military-grade plastic shell that comes in an attractive BLACK- - Reversible inner tracks make 2X Lifespan- Provides up to 24-9 lb-in of torque at 10,000 RPM- Dimensions:- Length: 5- Height: 4-5- Width: 3 SKU: NSDP032