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Unusual trainer
Strange trainer that fits in your hand. Weighs 200 grams or 300, but after the launch of a special cord or your finger in it unwinds a little curl, and then there is a feeling that the trainer "alive". Not only is the living, so more and pulled out of the hands with great force! In order to maintain the speed of rotation, it is necessary to perform the rotational movement of the wrist. In addition, there are models with the meter, they can organize competitions with each other. Overall - a great thing.
In Moscow and St. Petersburg trainer sell website www.powerball.ru