This model requires 3 pieces of 10mm hollow tubes, I chose aluminum tubes but because the aluminum tubes are too light, I also designed hooks to hang weights to prevent them from being washed away by water. The length can be chosen according to your own preference. It also needs 3 M4*20 bolts.

这个模型制作需要10毫米空心管三根，我选择的事铝管但是因为铝管太轻了，我又设计了挂钩来悬挂配重防止被水冲走，长度根据自己喜好进行选择。还需要3个M4*20的螺栓。