Student Gyroscope
Economical alternative for your entire class
Because it's so inexpensive, you can provide hands-on gyroscope experience for all your students. The compact 5.5cm diameter gyroscope comes complete with its own stand and starting cord. The axel's end notch means you can even balance it on a string.
學生用陀螺儀
因為它的價格不貴，很適合用這種小型的陀螺儀給所有的學生玩
。此精巧的陀螺儀直徑5.5公分；有自己的底座及使之旋轉的繩子
。轉軸尾端的凹痕使它可在繩子上平衡。