NSD Spinner is a gyroscopic wrist and forearm excerciser. It has an LCD display for measuring RPM.
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Pro LCD display helps you keep track of your progress
Not every gyroscopic wrist excerciser has an LCD display. It helps you keep track of your progress and also adds to the fun. You can see the RPM you work out at and your historical best for comparison.
Pro Pull-string for starting up
Gyroscopic wrist excercisers are often difficult to start up for beginners. A very precise and steady hand motion is needed. NSD Spinner comes with a pull-sting that helps you get the gyroscope spinning, so you don't have to spend time on starting it up(or learning how to do so).
Pro No vibration until you reach 15,000 RPM
For a regular user, 15,000 RPM is rather hard to reach. World records are a bit above that. This NSD Spinner has a very smooth gyroscopic rotor. You will probably work out at around 10,000 RPM and won't experience any vibration.
Pro Extremely fun
Compared to other fitness appliances, a gyroscopic spinner is very fun to use. It feels like a toy/game, which also lets you compete with friends for who gets the highest RPM.
Pro You can work out on the go
It's small and compact. You can carry it around and work out anywhere.