三个版本的模型，都差不多，区别不大，重量建议到30克以上，不然甩的不得劲。锯齿有可能贴不住底板发生变形。

Three versions of the 3D model, almost similar. Recommended to control the weight to 30 grams or more, otherwise it will be too light to spin without feeling. The serrations may not adhere to the base plate, resulting in deformation.