HOT Sports + Toys

Rollerball gyroscoop with LED for muscles

  • Rollerball gyroscoop with LED for muscles
Wrist ball gyroscope LED light This rollerballs contains a gyro mechaniscme and 2 color LEDs. This ball is good for developing stronger arm, wrist and shouldermuscles. And is also good training for people with a tennis arm. By turning the Wrist ball, you can create a force up to 10 kilogramms. This can reach up to 8000 RPM and makes the LEDs work without batteries. HOT Sports.

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Rollerball gyroscoop with LED for muscles