Science Museum Strength Ball - Krazy Gifts
Science Museum Strength Ball - Krazy Gifts

Science Museum Strength Ball

Regular price £9.99 Sale

  • We found it hard to describe this gadget, it's very weird but fun! Get it spinning at full revs and its like a jet engine in your hand! Could feel the burn after a few minutes.!!!
  • Pull the cord to spin the gyroscope inside the ball
  • Rotate the ball in your hand to increases the rotation of the gyroscope
  • Digital counter measures the speed & displays the number of RPM